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Finding the Fourth Proportional to 873,888.76, 1,309,614.54 and 660,481.48

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Solution

The fourth proportional to 873,888.76, 1,309,614.54 and 660,481.48 is: 989,801.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,888.76 : 1,309,614.54 = 660,481.48 : x
  2. Step 2: Convert to fraction form
    873,888.76/1,309,614.54 = 660,481.48/x
  3. Step 3: Cross multiply
    873,888.76x = 1,309,614.54 × 660,481.48
  4. Step 4: Simplify right side
    873,888.76x = 864,976,149,608.72
  5. Step 5: Solve for x
    x = 864,976,149,608.72/873,888.76
  6. Step 6: Final answer
    x = 989,801.21

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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.