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Finding the Fourth Proportional to 440,635.86, 608,081.34 and 239,431.86

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Solution

The fourth proportional to 440,635.86, 608,081.34 and 239,431.86 is: 330,418.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,635.86 : 608,081.34 = 239,431.86 : x
  2. Step 2: Convert to fraction form
    440,635.86/608,081.34 = 239,431.86/x
  3. Step 3: Cross multiply
    440,635.86x = 608,081.34 × 239,431.86
  4. Step 4: Simplify right side
    440,635.86x = 145,594,046,267.49
  5. Step 5: Solve for x
    x = 145,594,046,267.49/440,635.86
  6. Step 6: Final answer
    x = 330,418.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.