Home / 456,073.06-684,221.07-321,399.82

Finding the Fourth Proportional to 456,073.06, 684,221.07 and 321,399.82

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Solution

The fourth proportional to 456,073.06, 684,221.07 and 321,399.82 is: 482,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,073.06 : 684,221.07 = 321,399.82 : x
  2. Step 2: Convert to fraction form
    456,073.06/684,221.07 = 321,399.82/x
  3. Step 3: Cross multiply
    456,073.06x = 684,221.07 × 321,399.82
  4. Step 4: Simplify right side
    456,073.06x = 219,908,525,317.10
  5. Step 5: Solve for x
    x = 219,908,525,317.10/456,073.06
  6. Step 6: Final answer
    x = 482,178.29

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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.