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Finding the Fourth Proportional to 748,982, 1,123,473 and 223,670

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Solution

The fourth proportional to 748,982, 1,123,473 and 223,670 is: 335,505

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,982 : 1,123,473 = 223,670 : x
  2. Step 2: Convert to fraction form
    748,982/1,123,473 = 223,670/x
  3. Step 3: Cross multiply
    748,982x = 1,123,473 × 223,670
  4. Step 4: Simplify right side
    748,982x = 251,287,205,910
  5. Step 5: Solve for x
    x = 251,287,205,910/748,982
  6. Step 6: Final answer
    x = 335,505

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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.