Home / 784,295.87-1,176,320.78-215,719.61

Finding the Fourth Proportional to 784,295.87, 1,176,320.78 and 215,719.61

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Solution

The fourth proportional to 784,295.87, 1,176,320.78 and 215,719.61 is: 323,545.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,295.87 : 1,176,320.78 = 215,719.61 : x
  2. Step 2: Convert to fraction form
    784,295.87/1,176,320.78 = 215,719.61/x
  3. Step 3: Cross multiply
    784,295.87x = 1,176,320.78 × 215,719.61
  4. Step 4: Simplify right side
    784,295.87x = 253,755,453,745.24
  5. Step 5: Solve for x
    x = 253,755,453,745.24/784,295.87
  6. Step 6: Final answer
    x = 323,545.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.