Home / 1,025,347.40-1,538,021.10-426,109.40

Finding the Fourth Proportional to 1,025,347.40, 1,538,021.10 and 426,109.40

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Solution

The fourth proportional to 1,025,347.40, 1,538,021.10 and 426,109.40 is: 639,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,347.40 : 1,538,021.10 = 426,109.40 : x
  2. Step 2: Convert to fraction form
    1,025,347.40/1,538,021.10 = 426,109.40/x
  3. Step 3: Cross multiply
    1,025,347.40x = 1,538,021.10 × 426,109.40
  4. Step 4: Simplify right side
    1,025,347.40x = 655,365,248,108.34
  5. Step 5: Solve for x
    x = 655,365,248,108.34/1,025,347.40
  6. Step 6: Final answer
    x = 639,164.10

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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.