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Finding the Fourth Proportional to 504,863.04, 696,713.28 and 278,508.48

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Solution

The fourth proportional to 504,863.04, 696,713.28 and 278,508.48 is: 384,342.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,863.04 : 696,713.28 = 278,508.48 : x
  2. Step 2: Convert to fraction form
    504,863.04/696,713.28 = 278,508.48/x
  3. Step 3: Cross multiply
    504,863.04x = 696,713.28 × 278,508.48
  4. Step 4: Simplify right side
    504,863.04x = 194,040,556,608.61
  5. Step 5: Solve for x
    x = 194,040,556,608.61/504,863.04
  6. Step 6: Final answer
    x = 384,342.96

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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.