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Finding the Fourth Proportional to 504,434.43, 696,114.95 and 278,079.93

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Solution

The fourth proportional to 504,434.43, 696,114.95 and 278,079.93 is: 383,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,434.43 : 696,114.95 = 278,079.93 : x
  2. Step 2: Convert to fraction form
    504,434.43/696,114.95 = 278,079.93/x
  3. Step 3: Cross multiply
    504,434.43x = 696,114.95 × 278,079.93
  4. Step 4: Simplify right side
    504,434.43x = 193,575,595,177.55
  5. Step 5: Solve for x
    x = 193,575,595,177.55/504,434.43
  6. Step 6: Final answer
    x = 383,747.78

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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.