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Finding the Fourth Proportional to 504,894.96, 696,755 and 278,540.46

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Solution

The fourth proportional to 504,894.96, 696,755 and 278,540.46 is: 384,385.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,894.96 : 696,755 = 278,540.46 : x
  2. Step 2: Convert to fraction form
    504,894.96/696,755 = 278,540.46/x
  3. Step 3: Cross multiply
    504,894.96x = 696,755 × 278,540.46
  4. Step 4: Simplify right side
    504,894.96x = 194,074,458,207.30
  5. Step 5: Solve for x
    x = 194,074,458,207.30/504,894.96
  6. Step 6: Final answer
    x = 384,385.81

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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.