Home / 678,743.03-1,016,564.49-324,006.16

Finding the Fourth Proportional to 678,743.03, 1,016,564.49 and 324,006.16

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Solution

The fourth proportional to 678,743.03, 1,016,564.49 and 324,006.16 is: 485,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,743.03 : 1,016,564.49 = 324,006.16 : x
  2. Step 2: Convert to fraction form
    678,743.03/1,016,564.49 = 324,006.16/x
  3. Step 3: Cross multiply
    678,743.03x = 1,016,564.49 × 324,006.16
  4. Step 4: Simplify right side
    678,743.03x = 329,373,151,714.44
  5. Step 5: Solve for x
    x = 329,373,151,714.44/678,743.03
  6. Step 6: Final answer
    x = 485,269.30

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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.