Home / 442,399.85-660,370.09-379,623.38

Finding the Fourth Proportional to 442,399.85, 660,370.09 and 379,623.38

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Solution

The fourth proportional to 442,399.85, 660,370.09 and 379,623.38 is: 566,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,399.85 : 660,370.09 = 379,623.38 : x
  2. Step 2: Convert to fraction form
    442,399.85/660,370.09 = 379,623.38/x
  3. Step 3: Cross multiply
    442,399.85x = 660,370.09 × 379,623.38
  4. Step 4: Simplify right side
    442,399.85x = 250,691,925,616.70
  5. Step 5: Solve for x
    x = 250,691,925,616.70/442,399.85
  6. Step 6: Final answer
    x = 566,663.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.