Home / 509,389.20-702,915.92-294,543.18

Finding the Fourth Proportional to 509,389.20, 702,915.92 and 294,543.18

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Solution

The fourth proportional to 509,389.20, 702,915.92 and 294,543.18 is: 406,445.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,389.20 : 702,915.92 = 294,543.18 : x
  2. Step 2: Convert to fraction form
    509,389.20/702,915.92 = 294,543.18/x
  3. Step 3: Cross multiply
    509,389.20x = 702,915.92 × 294,543.18
  4. Step 4: Simplify right side
    509,389.20x = 207,039,090,349.43
  5. Step 5: Solve for x
    x = 207,039,090,349.43/509,389.20
  6. Step 6: Final answer
    x = 406,445.78

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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.