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Finding the Fourth Proportional to 889,773.60, 1,227,881.39 and 481,866.10

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Solution

The fourth proportional to 889,773.60, 1,227,881.39 and 481,866.10 is: 664,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,773.60 : 1,227,881.39 = 481,866.10 : x
  2. Step 2: Convert to fraction form
    889,773.60/1,227,881.39 = 481,866.10/x
  3. Step 3: Cross multiply
    889,773.60x = 1,227,881.39 × 481,866.10
  4. Step 4: Simplify right side
    889,773.60x = 591,674,416,661.88
  5. Step 5: Solve for x
    x = 591,674,416,661.88/889,773.60
  6. Step 6: Final answer
    x = 664,971.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.