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Finding the Fourth Proportional to 618,543.10, 853,575.02 and 363,910.68

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Solution

The fourth proportional to 618,543.10, 853,575.02 and 363,910.68 is: 502,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,543.10 : 853,575.02 = 363,910.68 : x
  2. Step 2: Convert to fraction form
    618,543.10/853,575.02 = 363,910.68/x
  3. Step 3: Cross multiply
    618,543.10x = 853,575.02 × 363,910.68
  4. Step 4: Simplify right side
    618,543.10x = 310,625,065,959.21
  5. Step 5: Solve for x
    x = 310,625,065,959.21/618,543.10
  6. Step 6: Final answer
    x = 502,188.23

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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.