Home / 461,320.80-691,851.60-145,874.40

Finding the Fourth Proportional to 461,320.80, 691,851.60 and 145,874.40

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Solution

The fourth proportional to 461,320.80, 691,851.60 and 145,874.40 is: 218,770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,320.80 : 691,851.60 = 145,874.40 : x
  2. Step 2: Convert to fraction form
    461,320.80/691,851.60 = 145,874.40/x
  3. Step 3: Cross multiply
    461,320.80x = 691,851.60 × 145,874.40
  4. Step 4: Simplify right side
    461,320.80x = 100,923,437,039.04
  5. Step 5: Solve for x
    x = 100,923,437,039.04/461,320.80
  6. Step 6: Final answer
    x = 218,770.62

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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.