Home / 814,876.80-1,219,982.40-499,948.80

Finding the Fourth Proportional to 814,876.80, 1,219,982.40 and 499,948.80

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Solution

The fourth proportional to 814,876.80, 1,219,982.40 and 499,948.80 is: 748,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,876.80 : 1,219,982.40 = 499,948.80 : x
  2. Step 2: Convert to fraction form
    814,876.80/1,219,982.40 = 499,948.80/x
  3. Step 3: Cross multiply
    814,876.80x = 1,219,982.40 × 499,948.80
  4. Step 4: Simplify right side
    814,876.80x = 609,928,736,901.12
  5. Step 5: Solve for x
    x = 609,928,736,901.12/814,876.80
  6. Step 6: Final answer
    x = 748,491.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.