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Finding the Fourth Proportional to 892,368.62, 1,338,049.90 and 293,168.90

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Solution

The fourth proportional to 892,368.62, 1,338,049.90 and 293,168.90 is: 439,588.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,368.62 : 1,338,049.90 = 293,168.90 : x
  2. Step 2: Convert to fraction form
    892,368.62/1,338,049.90 = 293,168.90/x
  3. Step 3: Cross multiply
    892,368.62x = 1,338,049.90 × 293,168.90
  4. Step 4: Simplify right side
    892,368.62x = 392,274,617,328.11
  5. Step 5: Solve for x
    x = 392,274,617,328.11/892,368.62
  6. Step 6: Final answer
    x = 439,588.09

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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.