Home / 690,418.52-1,035,146.46-305,958.02

Finding the Fourth Proportional to 690,418.52, 1,035,146.46 and 305,958.02

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Solution

The fourth proportional to 690,418.52, 1,035,146.46 and 305,958.02 is: 458,723.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,418.52 : 1,035,146.46 = 305,958.02 : x
  2. Step 2: Convert to fraction form
    690,418.52/1,035,146.46 = 305,958.02/x
  3. Step 3: Cross multiply
    690,418.52x = 1,035,146.46 × 305,958.02
  4. Step 4: Simplify right side
    690,418.52x = 316,711,361,311.61
  5. Step 5: Solve for x
    x = 316,711,361,311.61/690,418.52
  6. Step 6: Final answer
    x = 458,723.73

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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.