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Finding the Fourth Proportional to 442,933.60, 664,400.40 and 440,309.20

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Solution

The fourth proportional to 442,933.60, 664,400.40 and 440,309.20 is: 660,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,933.60 : 664,400.40 = 440,309.20 : x
  2. Step 2: Convert to fraction form
    442,933.60/664,400.40 = 440,309.20/x
  3. Step 3: Cross multiply
    442,933.60x = 664,400.40 × 440,309.20
  4. Step 4: Simplify right side
    442,933.60x = 292,541,608,603.68
  5. Step 5: Solve for x
    x = 292,541,608,603.68/442,933.60
  6. Step 6: Final answer
    x = 660,463.80

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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.