Home / 998,729.64-1,377,320.49-635,775.12

Finding the Fourth Proportional to 998,729.64, 1,377,320.49 and 635,775.12

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Solution

The fourth proportional to 998,729.64, 1,377,320.49 and 635,775.12 is: 876,779.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,729.64 : 1,377,320.49 = 635,775.12 : x
  2. Step 2: Convert to fraction form
    998,729.64/1,377,320.49 = 635,775.12/x
  3. Step 3: Cross multiply
    998,729.64x = 1,377,320.49 × 635,775.12
  4. Step 4: Simplify right side
    998,729.64x = 875,666,099,808.21
  5. Step 5: Solve for x
    x = 875,666,099,808.21/998,729.64
  6. Step 6: Final answer
    x = 876,779.93

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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.