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Finding the Fourth Proportional to 893,717, 1,340,153.16 and 324,701.36

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Solution

The fourth proportional to 893,717, 1,340,153.16 and 324,701.36 is: 486,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,717 : 1,340,153.16 = 324,701.36 : x
  2. Step 2: Convert to fraction form
    893,717/1,340,153.16 = 324,701.36/x
  3. Step 3: Cross multiply
    893,717x = 1,340,153.16 × 324,701.36
  4. Step 4: Simplify right side
    893,717x = 435,149,553,660.30
  5. Step 5: Solve for x
    x = 435,149,553,660.30/893,717
  6. Step 6: Final answer
    x = 486,898.60

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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.