Home / 861,549.02-1,188,917.94-539,436.72

Finding the Fourth Proportional to 861,549.02, 1,188,917.94 and 539,436.72

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Solution

The fourth proportional to 861,549.02, 1,188,917.94 and 539,436.72 is: 744,410.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,549.02 : 1,188,917.94 = 539,436.72 : x
  2. Step 2: Convert to fraction form
    861,549.02/1,188,917.94 = 539,436.72/x
  3. Step 3: Cross multiply
    861,549.02x = 1,188,917.94 × 539,436.72
  4. Step 4: Simplify right side
    861,549.02x = 641,345,993,902.76
  5. Step 5: Solve for x
    x = 641,345,993,902.76/861,549.02
  6. Step 6: Final answer
    x = 744,410.33

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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.