Home / 1,225,979.66-1,691,825.55-709,755.38

Finding the Fourth Proportional to 1,225,979.66, 1,691,825.55 and 709,755.38

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Solution

The fourth proportional to 1,225,979.66, 1,691,825.55 and 709,755.38 is: 979,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,979.66 : 1,691,825.55 = 709,755.38 : x
  2. Step 2: Convert to fraction form
    1,225,979.66/1,691,825.55 = 709,755.38/x
  3. Step 3: Cross multiply
    1,225,979.66x = 1,691,825.55 × 709,755.38
  4. Step 4: Simplify right side
    1,225,979.66x = 1,200,782,281,357.59
  5. Step 5: Solve for x
    x = 1,200,782,281,357.59/1,225,979.66
  6. Step 6: Final answer
    x = 979,447.15

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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.