Home / 782,107.29-1,079,330.81-442,568.25

Finding the Fourth Proportional to 782,107.29, 1,079,330.81 and 442,568.25

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Solution

The fourth proportional to 782,107.29, 1,079,330.81 and 442,568.25 is: 610,757.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,107.29 : 1,079,330.81 = 442,568.25 : x
  2. Step 2: Convert to fraction form
    782,107.29/1,079,330.81 = 442,568.25/x
  3. Step 3: Cross multiply
    782,107.29x = 1,079,330.81 × 442,568.25
  4. Step 4: Simplify right side
    782,107.29x = 477,677,545,539.94
  5. Step 5: Solve for x
    x = 477,677,545,539.94/782,107.29
  6. Step 6: Final answer
    x = 610,757.06

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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.