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Finding the Fourth Proportional to 347,778.71, 479,115.28 and 326,853.23

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Solution

The fourth proportional to 347,778.71, 479,115.28 and 326,853.23 is: 450,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,778.71 : 479,115.28 = 326,853.23 : x
  2. Step 2: Convert to fraction form
    347,778.71/479,115.28 = 326,853.23/x
  3. Step 3: Cross multiply
    347,778.71x = 479,115.28 × 326,853.23
  4. Step 4: Simplify right side
    347,778.71x = 156,600,373,597.65
  5. Step 5: Solve for x
    x = 156,600,373,597.65/347,778.71
  6. Step 6: Final answer
    x = 450,287.40

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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.