Home / 497,621.60-746,432.40-287,151.20

Finding the Fourth Proportional to 497,621.60, 746,432.40 and 287,151.20

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Solution

The fourth proportional to 497,621.60, 746,432.40 and 287,151.20 is: 430,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,621.60 : 746,432.40 = 287,151.20 : x
  2. Step 2: Convert to fraction form
    497,621.60/746,432.40 = 287,151.20/x
  3. Step 3: Cross multiply
    497,621.60x = 746,432.40 × 287,151.20
  4. Step 4: Simplify right side
    497,621.60x = 214,338,959,378.88
  5. Step 5: Solve for x
    x = 214,338,959,378.88/497,621.60
  6. Step 6: Final answer
    x = 430,726.80

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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.