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Finding the Fourth Proportional to 557,676.69, 769,598.70 and 303,027.87

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Solution

The fourth proportional to 557,676.69, 769,598.70 and 303,027.87 is: 418,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,676.69 : 769,598.70 = 303,027.87 : x
  2. Step 2: Convert to fraction form
    557,676.69/769,598.70 = 303,027.87/x
  3. Step 3: Cross multiply
    557,676.69x = 769,598.70 × 303,027.87
  4. Step 4: Simplify right side
    557,676.69x = 233,209,854,815.77
  5. Step 5: Solve for x
    x = 233,209,854,815.77/557,676.69
  6. Step 6: Final answer
    x = 418,181.11

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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.