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Finding the Fourth Proportional to 886,874.20, 1,330,311.30 and 354,477.40

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Solution

The fourth proportional to 886,874.20, 1,330,311.30 and 354,477.40 is: 531,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,874.20 : 1,330,311.30 = 354,477.40 : x
  2. Step 2: Convert to fraction form
    886,874.20/1,330,311.30 = 354,477.40/x
  3. Step 3: Cross multiply
    886,874.20x = 1,330,311.30 × 354,477.40
  4. Step 4: Simplify right side
    886,874.20x = 471,565,290,814.62
  5. Step 5: Solve for x
    x = 471,565,290,814.62/886,874.20
  6. Step 6: Final answer
    x = 531,716.10

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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.