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Finding the Fourth Proportional to 547,118.91, 755,424.09 and 353,641.10

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Solution

The fourth proportional to 547,118.91, 755,424.09 and 353,641.10 is: 488,283.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,118.91 : 755,424.09 = 353,641.10 : x
  2. Step 2: Convert to fraction form
    547,118.91/755,424.09 = 353,641.10/x
  3. Step 3: Cross multiply
    547,118.91x = 755,424.09 × 353,641.10
  4. Step 4: Simplify right side
    547,118.91x = 267,149,002,376.98
  5. Step 5: Solve for x
    x = 267,149,002,376.98/547,118.91
  6. Step 6: Final answer
    x = 488,283.26

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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.