Home / 747,192-1,031,124.96-478,920

Finding the Fourth Proportional to 747,192, 1,031,124.96 and 478,920

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Solution

The fourth proportional to 747,192, 1,031,124.96 and 478,920 is: 660,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,192 : 1,031,124.96 = 478,920 : x
  2. Step 2: Convert to fraction form
    747,192/1,031,124.96 = 478,920/x
  3. Step 3: Cross multiply
    747,192x = 1,031,124.96 × 478,920
  4. Step 4: Simplify right side
    747,192x = 493,826,365,843.20
  5. Step 5: Solve for x
    x = 493,826,365,843.20/747,192
  6. Step 6: Final answer
    x = 660,909.60

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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.