Home / 6,439,726.80-9,659,920.95-1,647,457.38

Finding the Fourth Proportional to 6,439,726.80, 9,659,920.95 and 1,647,457.38

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Solution

The fourth proportional to 6,439,726.80, 9,659,920.95 and 1,647,457.38 is: 2,471,270.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,726.80 : 9,659,920.95 = 1,647,457.38 : x
  2. Step 2: Convert to fraction form
    6,439,726.80/9,659,920.95 = 1,647,457.38/x
  3. Step 3: Cross multiply
    6,439,726.80x = 9,659,920.95 × 1,647,457.38
  4. Step 4: Simplify right side
    6,439,726.80x = 15,914,308,059,294.11
  5. Step 5: Solve for x
    x = 15,914,308,059,294.11/6,439,726.80
  6. Step 6: Final answer
    x = 2,471,270.68

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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.