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Finding the Fourth Proportional to 504,873.84, 696,677.42 and 278,504.76

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Solution

The fourth proportional to 504,873.84, 696,677.42 and 278,504.76 is: 384,309.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,873.84 : 696,677.42 = 278,504.76 : x
  2. Step 2: Convert to fraction form
    504,873.84/696,677.42 = 278,504.76/x
  3. Step 3: Cross multiply
    504,873.84x = 696,677.42 × 278,504.76
  4. Step 4: Simplify right side
    504,873.84x = 194,027,977,654.52
  5. Step 5: Solve for x
    x = 194,027,977,654.52/504,873.84
  6. Step 6: Final answer
    x = 384,309.83

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Double scale
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Similar ratio
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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.