Home / 815,083.20-1,221,034.32-533,747.52

Finding the Fourth Proportional to 815,083.20, 1,221,034.32 and 533,747.52

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Solution

The fourth proportional to 815,083.20, 1,221,034.32 and 533,747.52 is: 799,579.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,083.20 : 1,221,034.32 = 533,747.52 : x
  2. Step 2: Convert to fraction form
    815,083.20/1,221,034.32 = 533,747.52/x
  3. Step 3: Cross multiply
    815,083.20x = 1,221,034.32 × 533,747.52
  4. Step 4: Simplify right side
    815,083.20x = 651,724,040,134.89
  5. Step 5: Solve for x
    x = 651,724,040,134.89/815,083.20
  6. Step 6: Final answer
    x = 799,579.77

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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.