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Finding the Fourth Proportional to 625,288.87, 862,899.40 and 338,808.73

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Solution

The fourth proportional to 625,288.87, 862,899.40 and 338,808.73 is: 467,556.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,288.87 : 862,899.40 = 338,808.73 : x
  2. Step 2: Convert to fraction form
    625,288.87/862,899.40 = 338,808.73/x
  3. Step 3: Cross multiply
    625,288.87x = 862,899.40 × 338,808.73
  4. Step 4: Simplify right side
    625,288.87x = 292,357,849,831.76
  5. Step 5: Solve for x
    x = 292,357,849,831.76/625,288.87
  6. Step 6: Final answer
    x = 467,556.46

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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.