Home / 915,965.30-1,373,951.49-383,112.56

Finding the Fourth Proportional to 915,965.30, 1,373,951.49 and 383,112.56

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Solution

The fourth proportional to 915,965.30, 1,373,951.49 and 383,112.56 is: 574,670.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,965.30 : 1,373,951.49 = 383,112.56 : x
  2. Step 2: Convert to fraction form
    915,965.30/1,373,951.49 = 383,112.56/x
  3. Step 3: Cross multiply
    915,965.30x = 1,373,951.49 × 383,112.56
  4. Step 4: Simplify right side
    915,965.30x = 526,378,070,734.15
  5. Step 5: Solve for x
    x = 526,378,070,734.15/915,965.30
  6. Step 6: Final answer
    x = 574,670.32

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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.