Home / 820,495.56-1,230,105.92-531,697.12

Finding the Fourth Proportional to 820,495.56, 1,230,105.92 and 531,697.12

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Solution

The fourth proportional to 820,495.56, 1,230,105.92 and 531,697.12 is: 797,132.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,495.56 : 1,230,105.92 = 531,697.12 : x
  2. Step 2: Convert to fraction form
    820,495.56/1,230,105.92 = 531,697.12/x
  3. Step 3: Cross multiply
    820,495.56x = 1,230,105.92 × 531,697.12
  4. Step 4: Simplify right side
    820,495.56x = 654,043,773,212.93
  5. Step 5: Solve for x
    x = 654,043,773,212.93/820,495.56
  6. Step 6: Final answer
    x = 797,132.62

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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.