Home / 923,218.40-1,383,445.20-782,213.60

Finding the Fourth Proportional to 923,218.40, 1,383,445.20 and 782,213.60

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Solution

The fourth proportional to 923,218.40, 1,383,445.20 and 782,213.60 is: 1,172,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,218.40 : 1,383,445.20 = 782,213.60 : x
  2. Step 2: Convert to fraction form
    923,218.40/1,383,445.20 = 782,213.60/x
  3. Step 3: Cross multiply
    923,218.40x = 1,383,445.20 × 782,213.60
  4. Step 4: Simplify right side
    923,218.40x = 1,082,149,650,294.72
  5. Step 5: Solve for x
    x = 1,082,149,650,294.72/923,218.40
  6. Step 6: Final answer
    x = 1,172,149.14

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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.