Home / 321,608.04-482,435.10-84,948.36

Finding the Fourth Proportional to 321,608.04, 482,435.10 and 84,948.36

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Solution

The fourth proportional to 321,608.04, 482,435.10 and 84,948.36 is: 127,428.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,608.04 : 482,435.10 = 84,948.36 : x
  2. Step 2: Convert to fraction form
    321,608.04/482,435.10 = 84,948.36/x
  3. Step 3: Cross multiply
    321,608.04x = 482,435.10 × 84,948.36
  4. Step 4: Simplify right side
    321,608.04x = 40,982,070,551.44
  5. Step 5: Solve for x
    x = 40,982,070,551.44/321,608.04
  6. Step 6: Final answer
    x = 127,428.63

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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.