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Finding the Fourth Proportional to 522,793.60, 782,116.80 and 453,443.20

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Solution

The fourth proportional to 522,793.60, 782,116.80 and 453,443.20 is: 678,366.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,793.60 : 782,116.80 = 453,443.20 : x
  2. Step 2: Convert to fraction form
    522,793.60/782,116.80 = 453,443.20/x
  3. Step 3: Cross multiply
    522,793.60x = 782,116.80 × 453,443.20
  4. Step 4: Simplify right side
    522,793.60x = 354,645,544,565.76
  5. Step 5: Solve for x
    x = 354,645,544,565.76/522,793.60
  6. Step 6: Final answer
    x = 678,366.27

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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.