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Finding the Fourth Proportional to 1,300,579.54, 1,794,869.49 and 727,585.54

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Solution

The fourth proportional to 1,300,579.54, 1,794,869.49 and 727,585.54 is: 1,004,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,579.54 : 1,794,869.49 = 727,585.54 : x
  2. Step 2: Convert to fraction form
    1,300,579.54/1,794,869.49 = 727,585.54/x
  3. Step 3: Cross multiply
    1,300,579.54x = 1,794,869.49 × 727,585.54
  4. Step 4: Simplify right side
    1,300,579.54x = 1,305,921,087,111.17
  5. Step 5: Solve for x
    x = 1,305,921,087,111.17/1,300,579.54
  6. Step 6: Final answer
    x = 1,004,107.05

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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.