Home / 1,147,097.20-1,720,689.60-427,617.96

Finding the Fourth Proportional to 1,147,097.20, 1,720,689.60 and 427,617.96

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Solution

The fourth proportional to 1,147,097.20, 1,720,689.60 and 427,617.96 is: 641,443.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,097.20 : 1,720,689.60 = 427,617.96 : x
  2. Step 2: Convert to fraction form
    1,147,097.20/1,720,689.60 = 427,617.96/x
  3. Step 3: Cross multiply
    1,147,097.20x = 1,720,689.60 × 427,617.96
  4. Step 4: Simplify right side
    1,147,097.20x = 735,797,776,545.22
  5. Step 5: Solve for x
    x = 735,797,776,545.22/1,147,097.20
  6. Step 6: Final answer
    x = 641,443.27

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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.