Home / 769,042.28-1,061,246.22-442,330.44

Finding the Fourth Proportional to 769,042.28, 1,061,246.22 and 442,330.44

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Solution

The fourth proportional to 769,042.28, 1,061,246.22 and 442,330.44 is: 610,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,042.28 : 1,061,246.22 = 442,330.44 : x
  2. Step 2: Convert to fraction form
    769,042.28/1,061,246.22 = 442,330.44/x
  3. Step 3: Cross multiply
    769,042.28x = 1,061,246.22 × 442,330.44
  4. Step 4: Simplify right side
    769,042.28x = 469,421,507,440.94
  5. Step 5: Solve for x
    x = 469,421,507,440.94/769,042.28
  6. Step 6: Final answer
    x = 610,397.53

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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.