Home / 482,721.80-724,082.70-349,320.20

Finding the Fourth Proportional to 482,721.80, 724,082.70 and 349,320.20

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Solution

The fourth proportional to 482,721.80, 724,082.70 and 349,320.20 is: 523,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,721.80 : 724,082.70 = 349,320.20 : x
  2. Step 2: Convert to fraction form
    482,721.80/724,082.70 = 349,320.20/x
  3. Step 3: Cross multiply
    482,721.80x = 724,082.70 × 349,320.20
  4. Step 4: Simplify right side
    482,721.80x = 252,936,713,580.54
  5. Step 5: Solve for x
    x = 252,936,713,580.54/482,721.80
  6. Step 6: Final answer
    x = 523,980.30

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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.