Home / 1,215,731.23-1,677,940.92-801,540.77

Finding the Fourth Proportional to 1,215,731.23, 1,677,940.92 and 801,540.77

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Solution

The fourth proportional to 1,215,731.23, 1,677,940.92 and 801,540.77 is: 1,106,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,731.23 : 1,677,940.92 = 801,540.77 : x
  2. Step 2: Convert to fraction form
    1,215,731.23/1,677,940.92 = 801,540.77/x
  3. Step 3: Cross multiply
    1,215,731.23x = 1,677,940.92 × 801,540.77
  4. Step 4: Simplify right side
    1,215,731.23x = 1,344,938,048,641.60
  5. Step 5: Solve for x
    x = 1,344,938,048,641.60/1,215,731.23
  6. Step 6: Final answer
    x = 1,106,279.10

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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.