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Finding the Fourth Proportional to 721,595.76, 995,943 and 435,162.48

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Solution

The fourth proportional to 721,595.76, 995,943 and 435,162.48 is: 600,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,595.76 : 995,943 = 435,162.48 : x
  2. Step 2: Convert to fraction form
    721,595.76/995,943 = 435,162.48/x
  3. Step 3: Cross multiply
    721,595.76x = 995,943 × 435,162.48
  4. Step 4: Simplify right side
    721,595.76x = 433,397,025,818.64
  5. Step 5: Solve for x
    x = 433,397,025,818.64/721,595.76
  6. Step 6: Final answer
    x = 600,609.16

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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.