Home / 782,042.94-1,079,235.90-442,511.19

Finding the Fourth Proportional to 782,042.94, 1,079,235.90 and 442,511.19

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Solution

The fourth proportional to 782,042.94, 1,079,235.90 and 442,511.19 is: 610,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,042.94 : 1,079,235.90 = 442,511.19 : x
  2. Step 2: Convert to fraction form
    782,042.94/1,079,235.90 = 442,511.19/x
  3. Step 3: Cross multiply
    782,042.94x = 1,079,235.90 × 442,511.19
  4. Step 4: Simplify right side
    782,042.94x = 477,573,962,399.72
  5. Step 5: Solve for x
    x = 477,573,962,399.72/782,042.94
  6. Step 6: Final answer
    x = 610,674.86

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Double scale
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1.5x scale

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.