Home / 949,079.56-1,309,729.92-519,359.78

Finding the Fourth Proportional to 949,079.56, 1,309,729.92 and 519,359.78

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Solution

The fourth proportional to 949,079.56, 1,309,729.92 and 519,359.78 is: 716,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,079.56 : 1,309,729.92 = 519,359.78 : x
  2. Step 2: Convert to fraction form
    949,079.56/1,309,729.92 = 519,359.78/x
  3. Step 3: Cross multiply
    949,079.56x = 1,309,729.92 × 519,359.78
  4. Step 4: Simplify right side
    949,079.56x = 680,221,043,110.62
  5. Step 5: Solve for x
    x = 680,221,043,110.62/949,079.56
  6. Step 6: Final answer
    x = 716,716.57

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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.