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Finding the Fourth Proportional to 504,873.56, 696,714.30 and 278,519

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Solution

The fourth proportional to 504,873.56, 696,714.30 and 278,519 is: 384,350.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,873.56 : 696,714.30 = 278,519 : x
  2. Step 2: Convert to fraction form
    504,873.56/696,714.30 = 278,519/x
  3. Step 3: Cross multiply
    504,873.56x = 696,714.30 × 278,519
  4. Step 4: Simplify right side
    504,873.56x = 194,048,170,121.70
  5. Step 5: Solve for x
    x = 194,048,170,121.70/504,873.56
  6. Step 6: Final answer
    x = 384,350.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.