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Finding the Fourth Proportional to 379,523.57, 569,378.75 and 267,422.63

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Solution

The fourth proportional to 379,523.57, 569,378.75 and 267,422.63 is: 401,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,523.57 : 569,378.75 = 267,422.63 : x
  2. Step 2: Convert to fraction form
    379,523.57/569,378.75 = 267,422.63/x
  3. Step 3: Cross multiply
    379,523.57x = 569,378.75 × 267,422.63
  4. Step 4: Simplify right side
    379,523.57x = 152,264,758,607.11
  5. Step 5: Solve for x
    x = 152,264,758,607.11/379,523.57
  6. Step 6: Final answer
    x = 401,199.75

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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.