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Finding the Fourth Proportional to 805,257.67, 1,207,699.67 and 355,733.32

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Solution

The fourth proportional to 805,257.67, 1,207,699.67 and 355,733.32 is: 533,517.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,257.67 : 1,207,699.67 = 355,733.32 : x
  2. Step 2: Convert to fraction form
    805,257.67/1,207,699.67 = 355,733.32/x
  3. Step 3: Cross multiply
    805,257.67x = 1,207,699.67 × 355,733.32
  4. Step 4: Simplify right side
    805,257.67x = 429,619,013,306.53
  5. Step 5: Solve for x
    x = 429,619,013,306.53/805,257.67
  6. Step 6: Final answer
    x = 533,517.44

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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.