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Finding the Fourth Proportional to 504,449.88, 696,146.22 and 278,103.48

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Solution

The fourth proportional to 504,449.88, 696,146.22 and 278,103.48 is: 383,785.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,449.88 : 696,146.22 = 278,103.48 : x
  2. Step 2: Convert to fraction form
    504,449.88/696,146.22 = 278,103.48/x
  3. Step 3: Cross multiply
    504,449.88x = 696,146.22 × 278,103.48
  4. Step 4: Simplify right side
    504,449.88x = 193,600,686,370.85
  5. Step 5: Solve for x
    x = 193,600,686,370.85/504,449.88
  6. Step 6: Final answer
    x = 383,785.77

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1.5x scale

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.