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Finding the Fourth Proportional to 976,874.40, 1,465,311.60 and 892,893.60

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Solution

The fourth proportional to 976,874.40, 1,465,311.60 and 892,893.60 is: 1,339,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,874.40 : 1,465,311.60 = 892,893.60 : x
  2. Step 2: Convert to fraction form
    976,874.40/1,465,311.60 = 892,893.60/x
  3. Step 3: Cross multiply
    976,874.40x = 1,465,311.60 × 892,893.60
  4. Step 4: Simplify right side
    976,874.40x = 1,308,367,349,645.76
  5. Step 5: Solve for x
    x = 1,308,367,349,645.76/976,874.40
  6. Step 6: Final answer
    x = 1,339,340.40

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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.