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Finding the Fourth Proportional to 625,423.02, 863,080.11 and 338,942.94

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Solution

The fourth proportional to 625,423.02, 863,080.11 and 338,942.94 is: 467,739.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,423.02 : 863,080.11 = 338,942.94 : x
  2. Step 2: Convert to fraction form
    625,423.02/863,080.11 = 338,942.94/x
  3. Step 3: Cross multiply
    625,423.02x = 863,080.11 × 338,942.94
  4. Step 4: Simplify right side
    625,423.02x = 292,534,909,938.92
  5. Step 5: Solve for x
    x = 292,534,909,938.92/625,423.02
  6. Step 6: Final answer
    x = 467,739.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.