Home / 815,046.39-1,220,979.11-533,710.71

Finding the Fourth Proportional to 815,046.39, 1,220,979.11 and 533,710.71

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Solution

The fourth proportional to 815,046.39, 1,220,979.11 and 533,710.71 is: 799,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,046.39 : 1,220,979.11 = 533,710.71 : x
  2. Step 2: Convert to fraction form
    815,046.39/1,220,979.11 = 533,710.71/x
  3. Step 3: Cross multiply
    815,046.39x = 1,220,979.11 × 533,710.71
  4. Step 4: Simplify right side
    815,046.39x = 651,649,625,024.72
  5. Step 5: Solve for x
    x = 651,649,625,024.72/815,046.39
  6. Step 6: Final answer
    x = 799,524.58

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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.