Home / 1,129,842.14-1,559,659.28-762,816.47

Finding the Fourth Proportional to 1,129,842.14, 1,559,659.28 and 762,816.47

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Solution

The fourth proportional to 1,129,842.14, 1,559,659.28 and 762,816.47 is: 1,053,008.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,842.14 : 1,559,659.28 = 762,816.47 : x
  2. Step 2: Convert to fraction form
    1,129,842.14/1,559,659.28 = 762,816.47/x
  3. Step 3: Cross multiply
    1,129,842.14x = 1,559,659.28 × 762,816.47
  4. Step 4: Simplify right side
    1,129,842.14x = 1,189,733,774,759.96
  5. Step 5: Solve for x
    x = 1,189,733,774,759.96/1,129,842.14
  6. Step 6: Final answer
    x = 1,053,008.86

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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.