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Finding the Fourth Proportional to 479,548.86, 660,861.75 and 343,346.22

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Solution

The fourth proportional to 479,548.86, 660,861.75 and 343,346.22 is: 473,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,548.86 : 660,861.75 = 343,346.22 : x
  2. Step 2: Convert to fraction form
    479,548.86/660,861.75 = 343,346.22/x
  3. Step 3: Cross multiply
    479,548.86x = 660,861.75 × 343,346.22
  4. Step 4: Simplify right side
    479,548.86x = 226,904,383,805.09
  5. Step 5: Solve for x
    x = 226,904,383,805.09/479,548.86
  6. Step 6: Final answer
    x = 473,162.18

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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.