Home / 2,138,445.30-2,951,058.24-1,171,554.78

Finding the Fourth Proportional to 2,138,445.30, 2,951,058.24 and 1,171,554.78

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Solution

The fourth proportional to 2,138,445.30, 2,951,058.24 and 1,171,554.78 is: 1,616,747.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,445.30 : 2,951,058.24 = 1,171,554.78 : x
  2. Step 2: Convert to fraction form
    2,138,445.30/2,951,058.24 = 1,171,554.78/x
  3. Step 3: Cross multiply
    2,138,445.30x = 2,951,058.24 × 1,171,554.78
  4. Step 4: Simplify right side
    2,138,445.30x = 3,457,326,387,130.39
  5. Step 5: Solve for x
    x = 3,457,326,387,130.39/2,138,445.30
  6. Step 6: Final answer
    x = 1,616,747.64

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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.