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Finding the Fourth Proportional to 565,393.28, 779,982.57 and 347,404.05

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Solution

The fourth proportional to 565,393.28, 779,982.57 and 347,404.05 is: 479,257.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,393.28 : 779,982.57 = 347,404.05 : x
  2. Step 2: Convert to fraction form
    565,393.28/779,982.57 = 347,404.05/x
  3. Step 3: Cross multiply
    565,393.28x = 779,982.57 × 347,404.05
  4. Step 4: Simplify right side
    565,393.28x = 270,969,103,747.41
  5. Step 5: Solve for x
    x = 270,969,103,747.41/565,393.28
  6. Step 6: Final answer
    x = 479,257.74

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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.