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Finding the Fourth Proportional to 522,500.80, 782,584.80 and 403,787.20

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Solution

The fourth proportional to 522,500.80, 782,584.80 and 403,787.20 is: 604,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,500.80 : 782,584.80 = 403,787.20 : x
  2. Step 2: Convert to fraction form
    522,500.80/782,584.80 = 403,787.20/x
  3. Step 3: Cross multiply
    522,500.80x = 782,584.80 × 403,787.20
  4. Step 4: Simplify right side
    522,500.80x = 315,997,725,154.56
  5. Step 5: Solve for x
    x = 315,997,725,154.56/522,500.80
  6. Step 6: Final answer
    x = 604,779.41

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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.