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Finding the Fourth Proportional to 851,340, 1,277,210.46 and 252,306.12

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Solution

The fourth proportional to 851,340, 1,277,210.46 and 252,306.12 is: 378,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,340 : 1,277,210.46 = 252,306.12 : x
  2. Step 2: Convert to fraction form
    851,340/1,277,210.46 = 252,306.12/x
  3. Step 3: Cross multiply
    851,340x = 1,277,210.46 × 252,306.12
  4. Step 4: Simplify right side
    851,340x = 322,248,015,586.02
  5. Step 5: Solve for x
    x = 322,248,015,586.02/851,340
  6. Step 6: Final answer
    x = 378,518.59

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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.