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Finding the Fourth Proportional to 504,882.59, 696,737.93 and 278,528.09

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Solution

The fourth proportional to 504,882.59, 696,737.93 and 278,528.09 is: 384,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,882.59 : 696,737.93 = 278,528.09 : x
  2. Step 2: Convert to fraction form
    504,882.59/696,737.93 = 278,528.09/x
  3. Step 3: Cross multiply
    504,882.59x = 696,737.93 × 278,528.09
  4. Step 4: Simplify right side
    504,882.59x = 194,061,079,997.12
  5. Step 5: Solve for x
    x = 194,061,079,997.12/504,882.59
  6. Step 6: Final answer
    x = 384,368.73

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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.