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Finding the Fourth Proportional to 843,659.82, 1,265,494.59 and 345,023.82

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Solution

The fourth proportional to 843,659.82, 1,265,494.59 and 345,023.82 is: 517,537.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,659.82 : 1,265,494.59 = 345,023.82 : x
  2. Step 2: Convert to fraction form
    843,659.82/1,265,494.59 = 345,023.82/x
  3. Step 3: Cross multiply
    843,659.82x = 1,265,494.59 × 345,023.82
  4. Step 4: Simplify right side
    843,659.82x = 436,625,777,631.13
  5. Step 5: Solve for x
    x = 436,625,777,631.13/843,659.82
  6. Step 6: Final answer
    x = 517,537.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.