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Finding the Fourth Proportional to 539,648.22, 744,739.48 and 297,965.10

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Solution

The fourth proportional to 539,648.22, 744,739.48 and 297,965.10 is: 411,205.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,648.22 : 744,739.48 = 297,965.10 : x
  2. Step 2: Convert to fraction form
    539,648.22/744,739.48 = 297,965.10/x
  3. Step 3: Cross multiply
    539,648.22x = 744,739.48 × 297,965.10
  4. Step 4: Simplify right side
    539,648.22x = 221,906,373,632.15
  5. Step 5: Solve for x
    x = 221,906,373,632.15/539,648.22
  6. Step 6: Final answer
    x = 411,205.61

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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.