Home / 721,427.27-995,280.27-415,339.44

Finding the Fourth Proportional to 721,427.27, 995,280.27 and 415,339.44

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Solution

The fourth proportional to 721,427.27, 995,280.27 and 415,339.44 is: 573,001.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,427.27 : 995,280.27 = 415,339.44 : x
  2. Step 2: Convert to fraction form
    721,427.27/995,280.27 = 415,339.44/x
  3. Step 3: Cross multiply
    721,427.27x = 995,280.27 × 415,339.44
  4. Step 4: Simplify right side
    721,427.27x = 413,379,143,898.23
  5. Step 5: Solve for x
    x = 413,379,143,898.23/721,427.27
  6. Step 6: Final answer
    x = 573,001.83

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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.