Home / 1,272,377.26-1,755,892.38-691,601.76

Finding the Fourth Proportional to 1,272,377.26, 1,755,892.38 and 691,601.76

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Solution

The fourth proportional to 1,272,377.26, 1,755,892.38 and 691,601.76 is: 954,416.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,377.26 : 1,755,892.38 = 691,601.76 : x
  2. Step 2: Convert to fraction form
    1,272,377.26/1,755,892.38 = 691,601.76/x
  3. Step 3: Cross multiply
    1,272,377.26x = 1,755,892.38 × 691,601.76
  4. Step 4: Simplify right side
    1,272,377.26x = 1,214,378,249,870.12
  5. Step 5: Solve for x
    x = 1,214,378,249,870.12/1,272,377.26
  6. Step 6: Final answer
    x = 954,416.81

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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.