Home / 442,982.20-664,473.30-439,045.60

Finding the Fourth Proportional to 442,982.20, 664,473.30 and 439,045.60

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Solution

The fourth proportional to 442,982.20, 664,473.30 and 439,045.60 is: 658,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,982.20 : 664,473.30 = 439,045.60 : x
  2. Step 2: Convert to fraction form
    442,982.20/664,473.30 = 439,045.60/x
  3. Step 3: Cross multiply
    442,982.20x = 664,473.30 × 439,045.60
  4. Step 4: Simplify right side
    442,982.20x = 291,734,078,682.48
  5. Step 5: Solve for x
    x = 291,734,078,682.48/442,982.20
  6. Step 6: Final answer
    x = 658,568.40

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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.