Home / 840,718.09-1,160,218.97-458,765.83

Finding the Fourth Proportional to 840,718.09, 1,160,218.97 and 458,765.83

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Solution

The fourth proportional to 840,718.09, 1,160,218.97 and 458,765.83 is: 633,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,718.09 : 1,160,218.97 = 458,765.83 : x
  2. Step 2: Convert to fraction form
    840,718.09/1,160,218.97 = 458,765.83/x
  3. Step 3: Cross multiply
    840,718.09x = 1,160,218.97 × 458,765.83
  4. Step 4: Simplify right side
    840,718.09x = 532,268,818,753.80
  5. Step 5: Solve for x
    x = 532,268,818,753.80/840,718.09
  6. Step 6: Final answer
    x = 633,112.13

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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.