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Finding the Fourth Proportional to 625,260.16, 862,857.84 and 338,788

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Solution

The fourth proportional to 625,260.16, 862,857.84 and 338,788 is: 467,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,260.16 : 862,857.84 = 338,788 : x
  2. Step 2: Convert to fraction form
    625,260.16/862,857.84 = 338,788/x
  3. Step 3: Cross multiply
    625,260.16x = 862,857.84 × 338,788
  4. Step 4: Simplify right side
    625,260.16x = 292,325,881,897.92
  5. Step 5: Solve for x
    x = 292,325,881,897.92/625,260.16
  6. Step 6: Final answer
    x = 467,526.80

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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.