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Finding the Fourth Proportional to 978,353.94, 1,467,287.87 and 552,076.90

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Solution

The fourth proportional to 978,353.94, 1,467,287.87 and 552,076.90 is: 827,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,353.94 : 1,467,287.87 = 552,076.90 : x
  2. Step 2: Convert to fraction form
    978,353.94/1,467,287.87 = 552,076.90/x
  3. Step 3: Cross multiply
    978,353.94x = 1,467,287.87 × 552,076.90
  4. Step 4: Simplify right side
    978,353.94x = 810,055,738,677.20
  5. Step 5: Solve for x
    x = 810,055,738,677.20/978,353.94
  6. Step 6: Final answer
    x = 827,978.20

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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.