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Finding the Fourth Proportional to 884,158.68, 1,326,496.80 and 285,107.80

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Solution

The fourth proportional to 884,158.68, 1,326,496.80 and 285,107.80 is: 427,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,158.68 : 1,326,496.80 = 285,107.80 : x
  2. Step 2: Convert to fraction form
    884,158.68/1,326,496.80 = 285,107.80/x
  3. Step 3: Cross multiply
    884,158.68x = 1,326,496.80 × 285,107.80
  4. Step 4: Simplify right side
    884,158.68x = 378,194,584,355.04
  5. Step 5: Solve for x
    x = 378,194,584,355.04/884,158.68
  6. Step 6: Final answer
    x = 427,745.15

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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.