Home / 814,321.84-1,220,688.48-387,743.04

Finding the Fourth Proportional to 814,321.84, 1,220,688.48 and 387,743.04

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Solution

The fourth proportional to 814,321.84, 1,220,688.48 and 387,743.04 is: 581,236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,321.84 : 1,220,688.48 = 387,743.04 : x
  2. Step 2: Convert to fraction form
    814,321.84/1,220,688.48 = 387,743.04/x
  3. Step 3: Cross multiply
    814,321.84x = 1,220,688.48 × 387,743.04
  4. Step 4: Simplify right side
    814,321.84x = 473,313,462,128.18
  5. Step 5: Solve for x
    x = 473,313,462,128.18/814,321.84
  6. Step 6: Final answer
    x = 581,236.36

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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.