Home / 819,486.72-1,229,227.38-381,262.68

Finding the Fourth Proportional to 819,486.72, 1,229,227.38 and 381,262.68

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Solution

The fourth proportional to 819,486.72, 1,229,227.38 and 381,262.68 is: 571,892.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,486.72 : 1,229,227.38 = 381,262.68 : x
  2. Step 2: Convert to fraction form
    819,486.72/1,229,227.38 = 381,262.68/x
  3. Step 3: Cross multiply
    819,486.72x = 1,229,227.38 × 381,262.68
  4. Step 4: Simplify right side
    819,486.72x = 468,658,525,228.18
  5. Step 5: Solve for x
    x = 468,658,525,228.18/819,486.72
  6. Step 6: Final answer
    x = 571,892.76

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1.5x scale

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.