Home / 871,635.52-1,307,521.32-339,115.60

Finding the Fourth Proportional to 871,635.52, 1,307,521.32 and 339,115.60

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Solution

The fourth proportional to 871,635.52, 1,307,521.32 and 339,115.60 is: 508,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,635.52 : 1,307,521.32 = 339,115.60 : x
  2. Step 2: Convert to fraction form
    871,635.52/1,307,521.32 = 339,115.60/x
  3. Step 3: Cross multiply
    871,635.52x = 1,307,521.32 × 339,115.60
  4. Step 4: Simplify right side
    871,635.52x = 443,400,876,944.59
  5. Step 5: Solve for x
    x = 443,400,876,944.59/871,635.52
  6. Step 6: Final answer
    x = 508,699.87

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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.