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Finding the Fourth Proportional to 654,328.80, 981,493.20 and 591,343.20

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Solution

The fourth proportional to 654,328.80, 981,493.20 and 591,343.20 is: 887,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,328.80 : 981,493.20 = 591,343.20 : x
  2. Step 2: Convert to fraction form
    654,328.80/981,493.20 = 591,343.20/x
  3. Step 3: Cross multiply
    654,328.80x = 981,493.20 × 591,343.20
  4. Step 4: Simplify right side
    654,328.80x = 580,399,329,666.24
  5. Step 5: Solve for x
    x = 580,399,329,666.24/654,328.80
  6. Step 6: Final answer
    x = 887,014.80

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Similar ratio
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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.