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Finding the Fourth Proportional to 625,166, 862,729.44 and 338,688.08

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Solution

The fourth proportional to 625,166, 862,729.44 and 338,688.08 is: 467,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,166 : 862,729.44 = 338,688.08 : x
  2. Step 2: Convert to fraction form
    625,166/862,729.44 = 338,688.08/x
  3. Step 3: Cross multiply
    625,166x = 862,729.44 × 338,688.08
  4. Step 4: Simplify right side
    625,166x = 292,196,177,593.08
  5. Step 5: Solve for x
    x = 292,196,177,593.08/625,166
  6. Step 6: Final answer
    x = 467,389.75

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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.