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Finding the Fourth Proportional to 654,350.40, 982,011.60 and 338,644.80

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Solution

The fourth proportional to 654,350.40, 982,011.60 and 338,644.80 is: 508,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,350.40 : 982,011.60 = 338,644.80 : x
  2. Step 2: Convert to fraction form
    654,350.40/982,011.60 = 338,644.80/x
  3. Step 3: Cross multiply
    654,350.40x = 982,011.60 × 338,644.80
  4. Step 4: Simplify right side
    654,350.40x = 332,553,121,879.68
  5. Step 5: Solve for x
    x = 332,553,121,879.68/654,350.40
  6. Step 6: Final answer
    x = 508,218.72

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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.