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Finding the Fourth Proportional to 625,429.63, 863,093.55 and 338,949.64

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Solution

The fourth proportional to 625,429.63, 863,093.55 and 338,949.64 is: 467,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,429.63 : 863,093.55 = 338,949.64 : x
  2. Step 2: Convert to fraction form
    625,429.63/863,093.55 = 338,949.64/x
  3. Step 3: Cross multiply
    625,429.63x = 863,093.55 × 338,949.64
  4. Step 4: Simplify right side
    625,429.63x = 292,545,248,058.82
  5. Step 5: Solve for x
    x = 292,545,248,058.82/625,429.63
  6. Step 6: Final answer
    x = 467,750.86

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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.