Home / 871,771.20-1,307,851.20-339,244.80

Finding the Fourth Proportional to 871,771.20, 1,307,851.20 and 339,244.80

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Solution

The fourth proportional to 871,771.20, 1,307,851.20 and 339,244.80 is: 508,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,771.20 : 1,307,851.20 = 339,244.80 : x
  2. Step 2: Convert to fraction form
    871,771.20/1,307,851.20 = 339,244.80/x
  3. Step 3: Cross multiply
    871,771.20x = 1,307,851.20 × 339,244.80
  4. Step 4: Simplify right side
    871,771.20x = 443,681,718,773.76
  5. Step 5: Solve for x
    x = 443,681,718,773.76/871,771.20
  6. Step 6: Final answer
    x = 508,942.85

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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.