Home / 816,132.70-1,223,761.65-342,282.70

Finding the Fourth Proportional to 816,132.70, 1,223,761.65 and 342,282.70

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Solution

The fourth proportional to 816,132.70, 1,223,761.65 and 342,282.70 is: 513,240.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,132.70 : 1,223,761.65 = 342,282.70 : x
  2. Step 2: Convert to fraction form
    816,132.70/1,223,761.65 = 342,282.70/x
  3. Step 3: Cross multiply
    816,132.70x = 1,223,761.65 × 342,282.70
  4. Step 4: Simplify right side
    816,132.70x = 418,872,441,718.46
  5. Step 5: Solve for x
    x = 418,872,441,718.46/816,132.70
  6. Step 6: Final answer
    x = 513,240.61

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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.