Home / 442,788.85-664,644.16-392,507.29

Finding the Fourth Proportional to 442,788.85, 664,644.16 and 392,507.29

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Solution

The fourth proportional to 442,788.85, 664,644.16 and 392,507.29 is: 589,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,788.85 : 664,644.16 = 392,507.29 : x
  2. Step 2: Convert to fraction form
    442,788.85/664,644.16 = 392,507.29/x
  3. Step 3: Cross multiply
    442,788.85x = 664,644.16 × 392,507.29
  4. Step 4: Simplify right side
    442,788.85x = 260,877,676,884.95
  5. Step 5: Solve for x
    x = 260,877,676,884.95/442,788.85
  6. Step 6: Final answer
    x = 589,169.48

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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.