Home / 731,169.90-1,009,007.55-408,876.30

Finding the Fourth Proportional to 731,169.90, 1,009,007.55 and 408,876.30

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Solution

The fourth proportional to 731,169.90, 1,009,007.55 and 408,876.30 is: 564,245.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,169.90 : 1,009,007.55 = 408,876.30 : x
  2. Step 2: Convert to fraction form
    731,169.90/1,009,007.55 = 408,876.30/x
  3. Step 3: Cross multiply
    731,169.90x = 1,009,007.55 × 408,876.30
  4. Step 4: Simplify right side
    731,169.90x = 412,559,273,716.07
  5. Step 5: Solve for x
    x = 412,559,273,716.07/731,169.90
  6. Step 6: Final answer
    x = 564,245.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.