Home / 678,564.97-1,016,296.74-323,828.10

Finding the Fourth Proportional to 678,564.97, 1,016,296.74 and 323,828.10

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Solution

The fourth proportional to 678,564.97, 1,016,296.74 and 323,828.10 is: 485,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,564.97 : 1,016,296.74 = 323,828.10 : x
  2. Step 2: Convert to fraction form
    678,564.97/1,016,296.74 = 323,828.10/x
  3. Step 3: Cross multiply
    678,564.97x = 1,016,296.74 × 323,828.10
  4. Step 4: Simplify right side
    678,564.97x = 329,105,442,350.39
  5. Step 5: Solve for x
    x = 329,105,442,350.39/678,564.97
  6. Step 6: Final answer
    x = 485,002.11

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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.