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Finding the Fourth Proportional to 659,573.40, 986,249.70 and 491,611.80

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Solution

The fourth proportional to 659,573.40, 986,249.70 and 491,611.80 is: 735,099.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,573.40 : 986,249.70 = 491,611.80 : x
  2. Step 2: Convert to fraction form
    659,573.40/986,249.70 = 491,611.80/x
  3. Step 3: Cross multiply
    659,573.40x = 986,249.70 × 491,611.80
  4. Step 4: Simplify right side
    659,573.40x = 484,851,990,266.46
  5. Step 5: Solve for x
    x = 484,851,990,266.46/659,573.40
  6. Step 6: Final answer
    x = 735,099.37

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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.