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Finding the Fourth Proportional to 532,807.80, 800,961.30 and 455,825.40

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Solution

The fourth proportional to 532,807.80, 800,961.30 and 455,825.40 is: 685,234.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,807.80 : 800,961.30 = 455,825.40 : x
  2. Step 2: Convert to fraction form
    532,807.80/800,961.30 = 455,825.40/x
  3. Step 3: Cross multiply
    532,807.80x = 800,961.30 × 455,825.40
  4. Step 4: Simplify right side
    532,807.80x = 365,098,504,957.02
  5. Step 5: Solve for x
    x = 365,098,504,957.02/532,807.80
  6. Step 6: Final answer
    x = 685,234.91

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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.