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Finding the Fourth Proportional to 512,750.72, 706,995.80 and 349,503.88

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Solution

The fourth proportional to 512,750.72, 706,995.80 and 349,503.88 is: 481,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,750.72 : 706,995.80 = 349,503.88 : x
  2. Step 2: Convert to fraction form
    512,750.72/706,995.80 = 349,503.88/x
  3. Step 3: Cross multiply
    512,750.72x = 706,995.80 × 349,503.88
  4. Step 4: Simplify right side
    512,750.72x = 247,097,775,243.70
  5. Step 5: Solve for x
    x = 247,097,775,243.70/512,750.72
  6. Step 6: Final answer
    x = 481,906.25

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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.