Home / 1,225,229.28-1,690,568.64-715,833.24

Finding the Fourth Proportional to 1,225,229.28, 1,690,568.64 and 715,833.24

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Solution

The fourth proportional to 1,225,229.28, 1,690,568.64 and 715,833.24 is: 987,705.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,229.28 : 1,690,568.64 = 715,833.24 : x
  2. Step 2: Convert to fraction form
    1,225,229.28/1,690,568.64 = 715,833.24/x
  3. Step 3: Cross multiply
    1,225,229.28x = 1,690,568.64 × 715,833.24
  4. Step 4: Simplify right side
    1,225,229.28x = 1,210,165,227,013.59
  5. Step 5: Solve for x
    x = 1,210,165,227,013.59/1,225,229.28
  6. Step 6: Final answer
    x = 987,705.12

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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.