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Finding the Fourth Proportional to 549,615.88, 824,229.42 and 261,393.58

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Solution

The fourth proportional to 549,615.88, 824,229.42 and 261,393.58 is: 391,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,615.88 : 824,229.42 = 261,393.58 : x
  2. Step 2: Convert to fraction form
    549,615.88/824,229.42 = 261,393.58/x
  3. Step 3: Cross multiply
    549,615.88x = 824,229.42 × 261,393.58
  4. Step 4: Simplify right side
    549,615.88x = 215,448,280,355.52
  5. Step 5: Solve for x
    x = 215,448,280,355.52/549,615.88
  6. Step 6: Final answer
    x = 391,997.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.