Home / 1,272,627.40-1,756,206.90-691,831.24

Finding the Fourth Proportional to 1,272,627.40, 1,756,206.90 and 691,831.24

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Solution

The fourth proportional to 1,272,627.40, 1,756,206.90 and 691,831.24 is: 954,716.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,627.40 : 1,756,206.90 = 691,831.24 : x
  2. Step 2: Convert to fraction form
    1,272,627.40/1,756,206.90 = 691,831.24/x
  3. Step 3: Cross multiply
    1,272,627.40x = 1,756,206.90 × 691,831.24
  4. Step 4: Simplify right side
    1,272,627.40x = 1,214,998,797,323.56
  5. Step 5: Solve for x
    x = 1,214,998,797,323.56/1,272,627.40
  6. Step 6: Final answer
    x = 954,716.83

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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.