Home / 881,769.20-1,216,936.65-499,754.96

Finding the Fourth Proportional to 881,769.20, 1,216,936.65 and 499,754.96

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Solution

The fourth proportional to 881,769.20, 1,216,936.65 and 499,754.96 is: 689,715.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,769.20 : 1,216,936.65 = 499,754.96 : x
  2. Step 2: Convert to fraction form
    881,769.20/1,216,936.65 = 499,754.96/x
  3. Step 3: Cross multiply
    881,769.20x = 1,216,936.65 × 499,754.96
  4. Step 4: Simplify right side
    881,769.20x = 608,170,126,843.28
  5. Step 5: Solve for x
    x = 608,170,126,843.28/881,769.20
  6. Step 6: Final answer
    x = 689,715.77

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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.