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Finding the Fourth Proportional to 502,387.27, 693,302.30 and 272,949.10

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Solution

The fourth proportional to 502,387.27, 693,302.30 and 272,949.10 is: 376,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,387.27 : 693,302.30 = 272,949.10 : x
  2. Step 2: Convert to fraction form
    502,387.27/693,302.30 = 272,949.10/x
  3. Step 3: Cross multiply
    502,387.27x = 693,302.30 × 272,949.10
  4. Step 4: Simplify right side
    502,387.27x = 189,236,233,981.67
  5. Step 5: Solve for x
    x = 189,236,233,981.67/502,387.27
  6. Step 6: Final answer
    x = 376,674.03

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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.