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Finding the Fourth Proportional to 625,088.35, 862,621.88 and 338,608.36

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Solution

The fourth proportional to 625,088.35, 862,621.88 and 338,608.36 is: 467,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,088.35 : 862,621.88 = 338,608.36 : x
  2. Step 2: Convert to fraction form
    625,088.35/862,621.88 = 338,608.36/x
  3. Step 3: Cross multiply
    625,088.35x = 862,621.88 × 338,608.36
  4. Step 4: Simplify right side
    625,088.35x = 292,090,978,393.88
  5. Step 5: Solve for x
    x = 292,090,978,393.88/625,088.35
  6. Step 6: Final answer
    x = 467,279.51

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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.