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Finding the Fourth Proportional to 625,071.06, 862,602.21 and 338,591.15

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Solution

The fourth proportional to 625,071.06, 862,602.21 and 338,591.15 is: 467,258.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,071.06 : 862,602.21 = 338,591.15 : x
  2. Step 2: Convert to fraction form
    625,071.06/862,602.21 = 338,591.15/x
  3. Step 3: Cross multiply
    625,071.06x = 862,602.21 × 338,591.15
  4. Step 4: Simplify right side
    625,071.06x = 292,069,468,270.48
  5. Step 5: Solve for x
    x = 292,069,468,270.48/625,071.06
  6. Step 6: Final answer
    x = 467,258.02

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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.