Home / 1,005,320.40-1,507,980.60-340,472.40

Finding the Fourth Proportional to 1,005,320.40, 1,507,980.60 and 340,472.40

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Solution

The fourth proportional to 1,005,320.40, 1,507,980.60 and 340,472.40 is: 510,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,320.40 : 1,507,980.60 = 340,472.40 : x
  2. Step 2: Convert to fraction form
    1,005,320.40/1,507,980.60 = 340,472.40/x
  3. Step 3: Cross multiply
    1,005,320.40x = 1,507,980.60 × 340,472.40
  4. Step 4: Simplify right side
    1,005,320.40x = 513,425,774,035.44
  5. Step 5: Solve for x
    x = 513,425,774,035.44/1,005,320.40
  6. Step 6: Final answer
    x = 510,708.60

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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.