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Finding the Fourth Proportional to 659,570.40, 986,245.20 and 491,608.80

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Solution

The fourth proportional to 659,570.40, 986,245.20 and 491,608.80 is: 735,094.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,570.40 : 986,245.20 = 491,608.80 : x
  2. Step 2: Convert to fraction form
    659,570.40/986,245.20 = 491,608.80/x
  3. Step 3: Cross multiply
    659,570.40x = 986,245.20 × 491,608.80
  4. Step 4: Simplify right side
    659,570.40x = 484,846,819,277.76
  5. Step 5: Solve for x
    x = 484,846,819,277.76/659,570.40
  6. Step 6: Final answer
    x = 735,094.87

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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.