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Finding the Fourth Proportional to 543,212.02, 749,770.38 and 371,199.61

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Solution

The fourth proportional to 543,212.02, 749,770.38 and 371,199.61 is: 512,349.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,212.02 : 749,770.38 = 371,199.61 : x
  2. Step 2: Convert to fraction form
    543,212.02/749,770.38 = 371,199.61/x
  3. Step 3: Cross multiply
    543,212.02x = 749,770.38 × 371,199.61
  4. Step 4: Simplify right side
    543,212.02x = 278,314,472,645.55
  5. Step 5: Solve for x
    x = 278,314,472,645.55/543,212.02
  6. Step 6: Final answer
    x = 512,349.62

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1.5x scale

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.