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Finding the Fourth Proportional to 702,507.72, 1,053,761.52 and 170,028.72

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Solution

The fourth proportional to 702,507.72, 1,053,761.52 and 170,028.72 is: 255,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,507.72 : 1,053,761.52 = 170,028.72 : x
  2. Step 2: Convert to fraction form
    702,507.72/1,053,761.52 = 170,028.72/x
  3. Step 3: Cross multiply
    702,507.72x = 1,053,761.52 × 170,028.72
  4. Step 4: Simplify right side
    702,507.72x = 179,169,722,430.85
  5. Step 5: Solve for x
    x = 179,169,722,430.85/702,507.72
  6. Step 6: Final answer
    x = 255,043.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.