Home / 782,040.96-1,079,144.64-442,454.40

Finding the Fourth Proportional to 782,040.96, 1,079,144.64 and 442,454.40

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Solution

The fourth proportional to 782,040.96, 1,079,144.64 and 442,454.40 is: 610,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,040.96 : 1,079,144.64 = 442,454.40 : x
  2. Step 2: Convert to fraction form
    782,040.96/1,079,144.64 = 442,454.40/x
  3. Step 3: Cross multiply
    782,040.96x = 1,079,144.64 × 442,454.40
  4. Step 4: Simplify right side
    782,040.96x = 477,472,294,204.42
  5. Step 5: Solve for x
    x = 477,472,294,204.42/782,040.96
  6. Step 6: Final answer
    x = 610,546.40

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Double scale
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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.