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Finding the Fourth Proportional to 888,005.64, 1,225,422.90 and 485,589

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Solution

The fourth proportional to 888,005.64, 1,225,422.90 and 485,589 is: 670,099.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,005.64 : 1,225,422.90 = 485,589 : x
  2. Step 2: Convert to fraction form
    888,005.64/1,225,422.90 = 485,589/x
  3. Step 3: Cross multiply
    888,005.64x = 1,225,422.90 × 485,589
  4. Step 4: Simplify right side
    888,005.64x = 595,051,880,588.10
  5. Step 5: Solve for x
    x = 595,051,880,588.10/888,005.64
  6. Step 6: Final answer
    x = 670,099.21

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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.