Home / 502,085.20-752,890.20-291,787.60

Finding the Fourth Proportional to 502,085.20, 752,890.20 and 291,787.60

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Solution

The fourth proportional to 502,085.20, 752,890.20 and 291,787.60 is: 437,543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,085.20 : 752,890.20 = 291,787.60 : x
  2. Step 2: Convert to fraction form
    502,085.20/752,890.20 = 291,787.60/x
  3. Step 3: Cross multiply
    502,085.20x = 752,890.20 × 291,787.60
  4. Step 4: Simplify right side
    502,085.20x = 219,684,024,521.52
  5. Step 5: Solve for x
    x = 219,684,024,521.52/502,085.20
  6. Step 6: Final answer
    x = 437,543.32

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1.5x scale

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.