Home / 686,327.60-1,030,672.38-656,803.10

Finding the Fourth Proportional to 686,327.60, 1,030,672.38 and 656,803.10

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Solution

The fourth proportional to 686,327.60, 1,030,672.38 and 656,803.10 is: 986,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,327.60 : 1,030,672.38 = 656,803.10 : x
  2. Step 2: Convert to fraction form
    686,327.60/1,030,672.38 = 656,803.10/x
  3. Step 3: Cross multiply
    686,327.60x = 1,030,672.38 × 656,803.10
  4. Step 4: Simplify right side
    686,327.60x = 676,948,814,268.38
  5. Step 5: Solve for x
    x = 676,948,814,268.38/686,327.60
  6. Step 6: Final answer
    x = 986,334.83

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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.