Home / 861,322.92-1,292,171.18-262,268.38

Finding the Fourth Proportional to 861,322.92, 1,292,171.18 and 262,268.38

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Solution

The fourth proportional to 861,322.92, 1,292,171.18 and 262,268.38 is: 393,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,322.92 : 1,292,171.18 = 262,268.38 : x
  2. Step 2: Convert to fraction form
    861,322.92/1,292,171.18 = 262,268.38/x
  3. Step 3: Cross multiply
    861,322.92x = 1,292,171.18 × 262,268.38
  4. Step 4: Simplify right side
    861,322.92x = 338,895,643,840.42
  5. Step 5: Solve for x
    x = 338,895,643,840.42/861,322.92
  6. Step 6: Final answer
    x = 393,459.45

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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.