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Finding the Fourth Proportional to 504,872.83, 696,676.03 and 278,503.75

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Solution

The fourth proportional to 504,872.83, 696,676.03 and 278,503.75 is: 384,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,872.83 : 696,676.03 = 278,503.75 : x
  2. Step 2: Convert to fraction form
    504,872.83/696,676.03 = 278,503.75/x
  3. Step 3: Cross multiply
    504,872.83x = 696,676.03 × 278,503.75
  4. Step 4: Simplify right side
    504,872.83x = 194,026,886,890.11
  5. Step 5: Solve for x
    x = 194,026,886,890.11/504,872.83
  6. Step 6: Final answer
    x = 384,308.43

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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.