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Finding the Fourth Proportional to 978,757.23, 1,467,661.19 and 574,081.68

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Solution

The fourth proportional to 978,757.23, 1,467,661.19 and 574,081.68 is: 860,844.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,757.23 : 1,467,661.19 = 574,081.68 : x
  2. Step 2: Convert to fraction form
    978,757.23/1,467,661.19 = 574,081.68/x
  3. Step 3: Cross multiply
    978,757.23x = 1,467,661.19 × 574,081.68
  4. Step 4: Simplify right side
    978,757.23x = 842,557,398,755.59
  5. Step 5: Solve for x
    x = 842,557,398,755.59/978,757.23
  6. Step 6: Final answer
    x = 860,844.11

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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.