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Finding the Fourth Proportional to 552,242.56, 762,079.50 and 310,518.93

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Solution

The fourth proportional to 552,242.56, 762,079.50 and 310,518.93 is: 428,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,242.56 : 762,079.50 = 310,518.93 : x
  2. Step 2: Convert to fraction form
    552,242.56/762,079.50 = 310,518.93/x
  3. Step 3: Cross multiply
    552,242.56x = 762,079.50 × 310,518.93
  4. Step 4: Simplify right side
    552,242.56x = 236,640,110,914.94
  5. Step 5: Solve for x
    x = 236,640,110,914.94/552,242.56
  6. Step 6: Final answer
    x = 428,507.56

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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.