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Finding the Fourth Proportional to 978,754.80, 1,468,132.20 and 901,991.10

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Solution

The fourth proportional to 978,754.80, 1,468,132.20 and 901,991.10 is: 1,352,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,754.80 : 1,468,132.20 = 901,991.10 : x
  2. Step 2: Convert to fraction form
    978,754.80/1,468,132.20 = 901,991.10/x
  3. Step 3: Cross multiply
    978,754.80x = 1,468,132.20 × 901,991.10
  4. Step 4: Simplify right side
    978,754.80x = 1,324,242,178,023.42
  5. Step 5: Solve for x
    x = 1,324,242,178,023.42/978,754.80
  6. Step 6: Final answer
    x = 1,352,986.65

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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.