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Finding the Fourth Proportional to 625,094.40, 862,634.40 and 338,614.50

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Solution

The fourth proportional to 625,094.40, 862,634.40 and 338,614.50 is: 467,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,094.40 : 862,634.40 = 338,614.50 : x
  2. Step 2: Convert to fraction form
    625,094.40/862,634.40 = 338,614.50/x
  3. Step 3: Cross multiply
    625,094.40x = 862,634.40 × 338,614.50
  4. Step 4: Simplify right side
    625,094.40x = 292,100,516,038.80
  5. Step 5: Solve for x
    x = 292,100,516,038.80/625,094.40
  6. Step 6: Final answer
    x = 467,290.25

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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.