Home / 816,564.05-1,126,876.68-449,017.89

Finding the Fourth Proportional to 816,564.05, 1,126,876.68 and 449,017.89

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Solution

The fourth proportional to 816,564.05, 1,126,876.68 and 449,017.89 is: 619,654.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,564.05 : 1,126,876.68 = 449,017.89 : x
  2. Step 2: Convert to fraction form
    816,564.05/1,126,876.68 = 449,017.89/x
  3. Step 3: Cross multiply
    816,564.05x = 1,126,876.68 × 449,017.89
  4. Step 4: Simplify right side
    816,564.05x = 505,987,783,234.20
  5. Step 5: Solve for x
    x = 505,987,783,234.20/816,564.05
  6. Step 6: Final answer
    x = 619,654.74

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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.