Home / 1,385,837.83-2,078,761.56-426,286.92

Finding the Fourth Proportional to 1,385,837.83, 2,078,761.56 and 426,286.92

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Solution

The fourth proportional to 1,385,837.83, 2,078,761.56 and 426,286.92 is: 639,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,837.83 : 2,078,761.56 = 426,286.92 : x
  2. Step 2: Convert to fraction form
    1,385,837.83/2,078,761.56 = 426,286.92/x
  3. Step 3: Cross multiply
    1,385,837.83x = 2,078,761.56 × 426,286.92
  4. Step 4: Simplify right side
    1,385,837.83x = 886,148,862,826.80
  5. Step 5: Solve for x
    x = 886,148,862,826.80/1,385,837.83
  6. Step 6: Final answer
    x = 639,431.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.