Home / 842,519.20-1,261,321.20-817,943.20

Finding the Fourth Proportional to 842,519.20, 1,261,321.20 and 817,943.20

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Solution

The fourth proportional to 842,519.20, 1,261,321.20 and 817,943.20 is: 1,224,528.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,519.20 : 1,261,321.20 = 817,943.20 : x
  2. Step 2: Convert to fraction form
    842,519.20/1,261,321.20 = 817,943.20/x
  3. Step 3: Cross multiply
    842,519.20x = 1,261,321.20 × 817,943.20
  4. Step 4: Simplify right side
    842,519.20x = 1,031,689,098,555.84
  5. Step 5: Solve for x
    x = 1,031,689,098,555.84/842,519.20
  6. Step 6: Final answer
    x = 1,224,528.89

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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.