Home / 2,808,712.80-3,876,487.32-1,721,589.12

Finding the Fourth Proportional to 2,808,712.80, 3,876,487.32 and 1,721,589.12

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Solution

The fourth proportional to 2,808,712.80, 3,876,487.32 and 1,721,589.12 is: 2,376,077.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,712.80 : 3,876,487.32 = 1,721,589.12 : x
  2. Step 2: Convert to fraction form
    2,808,712.80/3,876,487.32 = 1,721,589.12/x
  3. Step 3: Cross multiply
    2,808,712.80x = 3,876,487.32 × 1,721,589.12
  4. Step 4: Simplify right side
    2,808,712.80x = 6,673,718,393,929.96
  5. Step 5: Solve for x
    x = 6,673,718,393,929.96/2,808,712.80
  6. Step 6: Final answer
    x = 2,376,077.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.