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Finding the Fourth Proportional to 699,800.42, 966,189.39 and 538,370.66

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Solution

The fourth proportional to 699,800.42, 966,189.39 and 538,370.66 is: 743,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,800.42 : 966,189.39 = 538,370.66 : x
  2. Step 2: Convert to fraction form
    699,800.42/966,189.39 = 538,370.66/x
  3. Step 3: Cross multiply
    699,800.42x = 966,189.39 × 538,370.66
  4. Step 4: Simplify right side
    699,800.42x = 520,168,019,579.30
  5. Step 5: Solve for x
    x = 520,168,019,579.30/699,800.42
  6. Step 6: Final answer
    x = 743,309.10

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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.