Home / 321,620.04-482,453.16-84,960.36

Finding the Fourth Proportional to 321,620.04, 482,453.16 and 84,960.36

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Solution

The fourth proportional to 321,620.04, 482,453.16 and 84,960.36 is: 127,446.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,620.04 : 482,453.16 = 84,960.36 : x
  2. Step 2: Convert to fraction form
    321,620.04/482,453.16 = 84,960.36/x
  3. Step 3: Cross multiply
    321,620.04x = 482,453.16 × 84,960.36
  4. Step 4: Simplify right side
    321,620.04x = 40,989,394,156.74
  5. Step 5: Solve for x
    x = 40,989,394,156.74/321,620.04
  6. Step 6: Final answer
    x = 127,446.64

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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.