Home / 840,718.10-1,160,218.98-458,765.84

Finding the Fourth Proportional to 840,718.10, 1,160,218.98 and 458,765.84

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Solution

The fourth proportional to 840,718.10, 1,160,218.98 and 458,765.84 is: 633,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,718.10 : 1,160,218.98 = 458,765.84 : x
  2. Step 2: Convert to fraction form
    840,718.10/1,160,218.98 = 458,765.84/x
  3. Step 3: Cross multiply
    840,718.10x = 1,160,218.98 × 458,765.84
  4. Step 4: Simplify right side
    840,718.10x = 532,268,826,848.72
  5. Step 5: Solve for x
    x = 532,268,826,848.72/840,718.10
  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.