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Finding the Fourth Proportional to 538,463.86, 743,095.70 and 296,762

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Solution

The fourth proportional to 538,463.86, 743,095.70 and 296,762 is: 409,540.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,463.86 : 743,095.70 = 296,762 : x
  2. Step 2: Convert to fraction form
    538,463.86/743,095.70 = 296,762/x
  3. Step 3: Cross multiply
    538,463.86x = 743,095.70 × 296,762
  4. Step 4: Simplify right side
    538,463.86x = 220,522,566,123.40
  5. Step 5: Solve for x
    x = 220,522,566,123.40/538,463.86
  6. Step 6: Final answer
    x = 409,540.14

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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.