Home / 543,276.78-749,769.42-316,995.18

Finding the Fourth Proportional to 543,276.78, 749,769.42 and 316,995.18

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Solution

The fourth proportional to 543,276.78, 749,769.42 and 316,995.18 is: 437,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,276.78 : 749,769.42 = 316,995.18 : x
  2. Step 2: Convert to fraction form
    543,276.78/749,769.42 = 316,995.18/x
  3. Step 3: Cross multiply
    543,276.78x = 749,769.42 × 316,995.18
  4. Step 4: Simplify right side
    543,276.78x = 237,673,292,251.40
  5. Step 5: Solve for x
    x = 237,673,292,251.40/543,276.78
  6. Step 6: Final answer
    x = 437,481.04

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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.