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Finding the Fourth Proportional to 625,278.82, 862,894.68 and 349,667.60

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Solution

The fourth proportional to 625,278.82, 862,894.68 and 349,667.60 is: 482,546.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,278.82 : 862,894.68 = 349,667.60 : x
  2. Step 2: Convert to fraction form
    625,278.82/862,894.68 = 349,667.60/x
  3. Step 3: Cross multiply
    625,278.82x = 862,894.68 × 349,667.60
  4. Step 4: Simplify right side
    625,278.82x = 301,726,311,808.37
  5. Step 5: Solve for x
    x = 301,726,311,808.37/625,278.82
  6. Step 6: Final answer
    x = 482,546.83

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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.