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Finding the Fourth Proportional to 504,676.62, 696,405.33 and 278,307.54

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Solution

The fourth proportional to 504,676.62, 696,405.33 and 278,307.54 is: 384,037.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,676.62 : 696,405.33 = 278,307.54 : x
  2. Step 2: Convert to fraction form
    504,676.62/696,405.33 = 278,307.54/x
  3. Step 3: Cross multiply
    504,676.62x = 696,405.33 × 278,307.54
  4. Step 4: Simplify right side
    504,676.62x = 193,814,854,235.19
  5. Step 5: Solve for x
    x = 193,814,854,235.19/504,676.62
  6. Step 6: Final answer
    x = 384,037.71

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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.