Home / 442,936.10-664,404.15-440,311.70

Finding the Fourth Proportional to 442,936.10, 664,404.15 and 440,311.70

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Solution

The fourth proportional to 442,936.10, 664,404.15 and 440,311.70 is: 660,467.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,936.10 : 664,404.15 = 440,311.70 : x
  2. Step 2: Convert to fraction form
    442,936.10/664,404.15 = 440,311.70/x
  3. Step 3: Cross multiply
    442,936.10x = 664,404.15 × 440,311.70
  4. Step 4: Simplify right side
    442,936.10x = 292,544,920,773.56
  5. Step 5: Solve for x
    x = 292,544,920,773.56/442,936.10
  6. Step 6: Final answer
    x = 660,467.55

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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.