Home / 819,063.04-1,228,087.68-319,840

Finding the Fourth Proportional to 819,063.04, 1,228,087.68 and 319,840

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Solution

The fourth proportional to 819,063.04, 1,228,087.68 and 319,840 is: 479,562.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,063.04 : 1,228,087.68 = 319,840 : x
  2. Step 2: Convert to fraction form
    819,063.04/1,228,087.68 = 319,840/x
  3. Step 3: Cross multiply
    819,063.04x = 1,228,087.68 × 319,840
  4. Step 4: Simplify right side
    819,063.04x = 392,791,563,571.20
  5. Step 5: Solve for x
    x = 392,791,563,571.20/819,063.04
  6. Step 6: Final answer
    x = 479,562.07

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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.