Home / 675,836.80-1,013,755.20-427,619.20

Finding the Fourth Proportional to 675,836.80, 1,013,755.20 and 427,619.20

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Solution

The fourth proportional to 675,836.80, 1,013,755.20 and 427,619.20 is: 641,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,836.80 : 1,013,755.20 = 427,619.20 : x
  2. Step 2: Convert to fraction form
    675,836.80/1,013,755.20 = 427,619.20/x
  3. Step 3: Cross multiply
    675,836.80x = 1,013,755.20 × 427,619.20
  4. Step 4: Simplify right side
    675,836.80x = 433,501,187,619.84
  5. Step 5: Solve for x
    x = 433,501,187,619.84/675,836.80
  6. Step 6: Final answer
    x = 641,428.80

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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.