Home / 549,052.79-823,721.12-321,540.49

Finding the Fourth Proportional to 549,052.79, 823,721.12 and 321,540.49

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Solution

The fourth proportional to 549,052.79, 823,721.12 and 321,540.49 is: 482,393.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,052.79 : 823,721.12 = 321,540.49 : x
  2. Step 2: Convert to fraction form
    549,052.79/823,721.12 = 321,540.49/x
  3. Step 3: Cross multiply
    549,052.79x = 823,721.12 × 321,540.49
  4. Step 4: Simplify right side
    549,052.79x = 264,859,686,821.84
  5. Step 5: Solve for x
    x = 264,859,686,821.84/549,052.79
  6. Step 6: Final answer
    x = 482,393.85

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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.