Home / 668,261.80-1,002,505.02-331,319.08

Finding the Fourth Proportional to 668,261.80, 1,002,505.02 and 331,319.08

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Solution

The fourth proportional to 668,261.80, 1,002,505.02 and 331,319.08 is: 497,034.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,261.80 : 1,002,505.02 = 331,319.08 : x
  2. Step 2: Convert to fraction form
    668,261.80/1,002,505.02 = 331,319.08/x
  3. Step 3: Cross multiply
    668,261.80x = 1,002,505.02 × 331,319.08
  4. Step 4: Simplify right side
    668,261.80x = 332,149,040,921.78
  5. Step 5: Solve for x
    x = 332,149,040,921.78/668,261.80
  6. Step 6: Final answer
    x = 497,034.31

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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.