Home / 663,862.32-916,125.84-377,382.42

Finding the Fourth Proportional to 663,862.32, 916,125.84 and 377,382.42

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Solution

The fourth proportional to 663,862.32, 916,125.84 and 377,382.42 is: 520,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,862.32 : 916,125.84 = 377,382.42 : x
  2. Step 2: Convert to fraction form
    663,862.32/916,125.84 = 377,382.42/x
  3. Step 3: Cross multiply
    663,862.32x = 916,125.84 × 377,382.42
  4. Step 4: Simplify right side
    663,862.32x = 345,729,786,523.73
  5. Step 5: Solve for x
    x = 345,729,786,523.73/663,862.32
  6. Step 6: Final answer
    x = 520,785.37

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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.