Home / 816,916.80-1,225,593.90-728,780.70

Finding the Fourth Proportional to 816,916.80, 1,225,593.90 and 728,780.70

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Solution

The fourth proportional to 816,916.80, 1,225,593.90 and 728,780.70 is: 1,093,366.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,916.80 : 1,225,593.90 = 728,780.70 : x
  2. Step 2: Convert to fraction form
    816,916.80/1,225,593.90 = 728,780.70/x
  3. Step 3: Cross multiply
    816,916.80x = 1,225,593.90 × 728,780.70
  4. Step 4: Simplify right side
    816,916.80x = 893,189,180,357.73
  5. Step 5: Solve for x
    x = 893,189,180,357.73/816,916.80
  6. Step 6: Final answer
    x = 1,093,366.15

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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.