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Finding the Fourth Proportional to 654,205.67, 980,306.92 and 440,180.84

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Solution

The fourth proportional to 654,205.67, 980,306.92 and 440,180.84 is: 659,597.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,205.67 : 980,306.92 = 440,180.84 : x
  2. Step 2: Convert to fraction form
    654,205.67/980,306.92 = 440,180.84/x
  3. Step 3: Cross multiply
    654,205.67x = 980,306.92 × 440,180.84
  4. Step 4: Simplify right side
    654,205.67x = 431,512,323,503.41
  5. Step 5: Solve for x
    x = 431,512,323,503.41/654,205.67
  6. Step 6: Final answer
    x = 659,597.35

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1.5x scale

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.