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Finding the Fourth Proportional to 531,979.12, 734,398.88 and 338,581.49

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Solution

The fourth proportional to 531,979.12, 734,398.88 and 338,581.49 is: 467,412.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,979.12 : 734,398.88 = 338,581.49 : x
  2. Step 2: Convert to fraction form
    531,979.12/734,398.88 = 338,581.49/x
  3. Step 3: Cross multiply
    531,979.12x = 734,398.88 × 338,581.49
  4. Step 4: Simplify right side
    531,979.12x = 248,653,867,044.73
  5. Step 5: Solve for x
    x = 248,653,867,044.73/531,979.12
  6. Step 6: Final answer
    x = 467,412.83

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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.