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Finding the Fourth Proportional to 700,772.20, 966,057.84 and 499,218.28

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Solution

The fourth proportional to 700,772.20, 966,057.84 and 499,218.28 is: 688,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,772.20 : 966,057.84 = 499,218.28 : x
  2. Step 2: Convert to fraction form
    700,772.20/966,057.84 = 499,218.28/x
  3. Step 3: Cross multiply
    700,772.20x = 966,057.84 × 499,218.28
  4. Step 4: Simplify right side
    700,772.20x = 482,273,733,265.32
  5. Step 5: Solve for x
    x = 482,273,733,265.32/700,772.20
  6. Step 6: Final answer
    x = 688,203.29

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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.