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Finding the Fourth Proportional to 552,170.28, 761,975.31 and 310,466.70

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Solution

The fourth proportional to 552,170.28, 761,975.31 and 310,466.70 is: 428,432.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,170.28 : 761,975.31 = 310,466.70 : x
  2. Step 2: Convert to fraction form
    552,170.28/761,975.31 = 310,466.70/x
  3. Step 3: Cross multiply
    552,170.28x = 761,975.31 × 310,466.70
  4. Step 4: Simplify right side
    552,170.28x = 236,567,959,977.18
  5. Step 5: Solve for x
    x = 236,567,959,977.18/552,170.28
  6. Step 6: Final answer
    x = 428,432.98

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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.