Home / 1,129,840.64-1,559,657.20-762,814.97

Finding the Fourth Proportional to 1,129,840.64, 1,559,657.20 and 762,814.97

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Solution

The fourth proportional to 1,129,840.64, 1,559,657.20 and 762,814.97 is: 1,053,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,840.64 : 1,559,657.20 = 762,814.97 : x
  2. Step 2: Convert to fraction form
    1,129,840.64/1,559,657.20 = 762,814.97/x
  3. Step 3: Cross multiply
    1,129,840.64x = 1,559,657.20 × 762,814.97
  4. Step 4: Simplify right side
    1,129,840.64x = 1,189,729,854,337.04
  5. Step 5: Solve for x
    x = 1,189,729,854,337.04/1,129,840.64
  6. Step 6: Final answer
    x = 1,053,006.78

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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.