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Finding the Fourth Proportional to 654,324.80, 981,487.20 and 496,860.80

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Solution

The fourth proportional to 654,324.80, 981,487.20 and 496,860.80 is: 745,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,324.80 : 981,487.20 = 496,860.80 : x
  2. Step 2: Convert to fraction form
    654,324.80/981,487.20 = 496,860.80/x
  3. Step 3: Cross multiply
    654,324.80x = 981,487.20 × 496,860.80
  4. Step 4: Simplify right side
    654,324.80x = 487,662,515,381.76
  5. Step 5: Solve for x
    x = 487,662,515,381.76/654,324.80
  6. Step 6: Final answer
    x = 745,291.20

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Similar ratio
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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.