Home / 442,026.18-663,503.04-391,746.90

Finding the Fourth Proportional to 442,026.18, 663,503.04 and 391,746.90

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Solution

The fourth proportional to 442,026.18, 663,503.04 and 391,746.90 is: 588,031.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,026.18 : 663,503.04 = 391,746.90 : x
  2. Step 2: Convert to fraction form
    442,026.18/663,503.04 = 391,746.90/x
  3. Step 3: Cross multiply
    442,026.18x = 663,503.04 × 391,746.90
  4. Step 4: Simplify right side
    442,026.18x = 259,925,259,060.58
  5. Step 5: Solve for x
    x = 259,925,259,060.58/442,026.18
  6. Step 6: Final answer
    x = 588,031.37

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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.