Home / 919,500.80-1,379,251.20-545,945.60

Finding the Fourth Proportional to 919,500.80, 1,379,251.20 and 545,945.60

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Solution

The fourth proportional to 919,500.80, 1,379,251.20 and 545,945.60 is: 818,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,500.80 : 1,379,251.20 = 545,945.60 : x
  2. Step 2: Convert to fraction form
    919,500.80/1,379,251.20 = 545,945.60/x
  3. Step 3: Cross multiply
    919,500.80x = 1,379,251.20 × 545,945.60
  4. Step 4: Simplify right side
    919,500.80x = 752,996,123,934.72
  5. Step 5: Solve for x
    x = 752,996,123,934.72/919,500.80
  6. Step 6: Final answer
    x = 818,918.40

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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.