Home / 871,921.80-1,306,910.70-339,265.80

Finding the Fourth Proportional to 871,921.80, 1,306,910.70 and 339,265.80

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Solution

The fourth proportional to 871,921.80, 1,306,910.70 and 339,265.80 is: 508,520.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,921.80 : 1,306,910.70 = 339,265.80 : x
  2. Step 2: Convert to fraction form
    871,921.80/1,306,910.70 = 339,265.80/x
  3. Step 3: Cross multiply
    871,921.80x = 1,306,910.70 × 339,265.80
  4. Step 4: Simplify right side
    871,921.80x = 443,390,104,164.06
  5. Step 5: Solve for x
    x = 443,390,104,164.06/871,921.80
  6. Step 6: Final answer
    x = 508,520.49

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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.