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Finding the Fourth Proportional to 498,802.32, 688,344.48 and 272,446.20

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Solution

The fourth proportional to 498,802.32, 688,344.48 and 272,446.20 is: 375,974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,802.32 : 688,344.48 = 272,446.20 : x
  2. Step 2: Convert to fraction form
    498,802.32/688,344.48 = 272,446.20/x
  3. Step 3: Cross multiply
    498,802.32x = 688,344.48 × 272,446.20
  4. Step 4: Simplify right side
    498,802.32x = 187,536,837,866.98
  5. Step 5: Solve for x
    x = 187,536,837,866.98/498,802.32
  6. Step 6: Final answer
    x = 375,974.27

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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.