Home / 721,345.14-995,531.04-415,432.44

Finding the Fourth Proportional to 721,345.14, 995,531.04 and 415,432.44

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Solution

The fourth proportional to 721,345.14, 995,531.04 and 415,432.44 is: 573,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,345.14 : 995,531.04 = 415,432.44 : x
  2. Step 2: Convert to fraction form
    721,345.14/995,531.04 = 415,432.44/x
  3. Step 3: Cross multiply
    721,345.14x = 995,531.04 × 415,432.44
  4. Step 4: Simplify right side
    721,345.14x = 413,575,889,042.94
  5. Step 5: Solve for x
    x = 413,575,889,042.94/721,345.14
  6. Step 6: Final answer
    x = 573,339.81

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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.