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Finding the Fourth Proportional to 548,149.01, 756,451.24 and 306,445.01

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Solution

The fourth proportional to 548,149.01, 756,451.24 and 306,445.01 is: 422,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,149.01 : 756,451.24 = 306,445.01 : x
  2. Step 2: Convert to fraction form
    548,149.01/756,451.24 = 306,445.01/x
  3. Step 3: Cross multiply
    548,149.01x = 756,451.24 × 306,445.01
  4. Step 4: Simplify right side
    548,149.01x = 231,810,703,257.94
  5. Step 5: Solve for x
    x = 231,810,703,257.94/548,149.01
  6. Step 6: Final answer
    x = 422,897.24

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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.