Home / 1,371,720.72-1,893,471.48-1,116,629.04

Finding the Fourth Proportional to 1,371,720.72, 1,893,471.48 and 1,116,629.04

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Solution

The fourth proportional to 1,371,720.72, 1,893,471.48 and 1,116,629.04 is: 1,541,352.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,720.72 : 1,893,471.48 = 1,116,629.04 : x
  2. Step 2: Convert to fraction form
    1,371,720.72/1,893,471.48 = 1,116,629.04/x
  3. Step 3: Cross multiply
    1,371,720.72x = 1,893,471.48 × 1,116,629.04
  4. Step 4: Simplify right side
    1,371,720.72x = 2,114,305,240,979.78
  5. Step 5: Solve for x
    x = 2,114,305,240,979.78/1,371,720.72
  6. Step 6: Final answer
    x = 1,541,352.56

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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.