Home / 686,767.80-1,029,276.90-499,560.60

Finding the Fourth Proportional to 686,767.80, 1,029,276.90 and 499,560.60

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Solution

The fourth proportional to 686,767.80, 1,029,276.90 and 499,560.60 is: 748,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,767.80 : 1,029,276.90 = 499,560.60 : x
  2. Step 2: Convert to fraction form
    686,767.80/1,029,276.90 = 499,560.60/x
  3. Step 3: Cross multiply
    686,767.80x = 1,029,276.90 × 499,560.60
  4. Step 4: Simplify right side
    686,767.80x = 514,186,185,730.14
  5. Step 5: Solve for x
    x = 514,186,185,730.14/686,767.80
  6. Step 6: Final answer
    x = 748,704.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.