Home / 749,268.05-1,123,902.08-687,266.60

Finding the Fourth Proportional to 749,268.05, 1,123,902.08 and 687,266.60

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Solution

The fourth proportional to 749,268.05, 1,123,902.08 and 687,266.60 is: 1,030,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,268.05 : 1,123,902.08 = 687,266.60 : x
  2. Step 2: Convert to fraction form
    749,268.05/1,123,902.08 = 687,266.60/x
  3. Step 3: Cross multiply
    749,268.05x = 1,123,902.08 × 687,266.60
  4. Step 4: Simplify right side
    749,268.05x = 772,420,357,818.20
  5. Step 5: Solve for x
    x = 772,420,357,818.20/749,268.05
  6. Step 6: Final answer
    x = 1,030,899.90

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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.