Home / 1,253,148.91-1,729,049.13-709,284.72

Finding the Fourth Proportional to 1,253,148.91, 1,729,049.13 and 709,284.72

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Solution

The fourth proportional to 1,253,148.91, 1,729,049.13 and 709,284.72 is: 978,645.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,148.91 : 1,729,049.13 = 709,284.72 : x
  2. Step 2: Convert to fraction form
    1,253,148.91/1,729,049.13 = 709,284.72/x
  3. Step 3: Cross multiply
    1,253,148.91x = 1,729,049.13 × 709,284.72
  4. Step 4: Simplify right side
    1,253,148.91x = 1,226,388,134,522.23
  5. Step 5: Solve for x
    x = 1,226,388,134,522.23/1,253,148.91
  6. Step 6: Final answer
    x = 978,645.18

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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.