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Finding the Fourth Proportional to 625,494, 863,176.86 and 339,006.72

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Solution

The fourth proportional to 625,494, 863,176.86 and 339,006.72 is: 467,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,494 : 863,176.86 = 339,006.72 : x
  2. Step 2: Convert to fraction form
    625,494/863,176.86 = 339,006.72/x
  3. Step 3: Cross multiply
    625,494x = 863,176.86 × 339,006.72
  4. Step 4: Simplify right side
    625,494x = 292,622,756,088.50
  5. Step 5: Solve for x
    x = 292,622,756,088.50/625,494
  6. Step 6: Final answer
    x = 467,826.64

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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.