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Finding the Fourth Proportional to 442,567.31, 663,848.78 and 382,412.74

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Solution

The fourth proportional to 442,567.31, 663,848.78 and 382,412.74 is: 573,617.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,567.31 : 663,848.78 = 382,412.74 : x
  2. Step 2: Convert to fraction form
    442,567.31/663,848.78 = 382,412.74/x
  3. Step 3: Cross multiply
    442,567.31x = 663,848.78 × 382,412.74
  4. Step 4: Simplify right side
    442,567.31x = 253,864,231,446.58
  5. Step 5: Solve for x
    x = 253,864,231,446.58/442,567.31
  6. Step 6: Final answer
    x = 573,617.22

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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.