Home / 1,025,353.40-1,538,030.10-426,115.40

Finding the Fourth Proportional to 1,025,353.40, 1,538,030.10 and 426,115.40

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Solution

The fourth proportional to 1,025,353.40, 1,538,030.10 and 426,115.40 is: 639,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,353.40 : 1,538,030.10 = 426,115.40 : x
  2. Step 2: Convert to fraction form
    1,025,353.40/1,538,030.10 = 426,115.40/x
  3. Step 3: Cross multiply
    1,025,353.40x = 1,538,030.10 × 426,115.40
  4. Step 4: Simplify right side
    1,025,353.40x = 655,378,311,273.54
  5. Step 5: Solve for x
    x = 655,378,311,273.54/1,025,353.40
  6. Step 6: Final answer
    x = 639,173.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.