Home / 812,373.92-1,218,029.51-767,765.60

Finding the Fourth Proportional to 812,373.92, 1,218,029.51 and 767,765.60

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Solution

The fourth proportional to 812,373.92, 1,218,029.51 and 767,765.60 is: 1,151,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,373.92 : 1,218,029.51 = 767,765.60 : x
  2. Step 2: Convert to fraction form
    812,373.92/1,218,029.51 = 767,765.60/x
  3. Step 3: Cross multiply
    812,373.92x = 1,218,029.51 × 767,765.60
  4. Step 4: Simplify right side
    812,373.92x = 935,161,153,392.12
  5. Step 5: Solve for x
    x = 935,161,153,392.12/812,373.92
  6. Step 6: Final answer
    x = 1,151,146.21

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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.