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Finding the Fourth Proportional to 965,765.71, 1,332,757.53 and 578,805.90

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Solution

The fourth proportional to 965,765.71, 1,332,757.53 and 578,805.90 is: 798,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,765.71 : 1,332,757.53 = 578,805.90 : x
  2. Step 2: Convert to fraction form
    965,765.71/1,332,757.53 = 578,805.90/x
  3. Step 3: Cross multiply
    965,765.71x = 1,332,757.53 × 578,805.90
  4. Step 4: Simplify right side
    965,765.71x = 771,407,916,635.59
  5. Step 5: Solve for x
    x = 771,407,916,635.59/965,765.71
  6. Step 6: Final answer
    x = 798,752.65

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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.