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Finding the Fourth Proportional to 653,212.59, 979,880.49 and 253,883.94

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Solution

The fourth proportional to 653,212.59, 979,880.49 and 253,883.94 is: 380,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,212.59 : 979,880.49 = 253,883.94 : x
  2. Step 2: Convert to fraction form
    653,212.59/979,880.49 = 253,883.94/x
  3. Step 3: Cross multiply
    653,212.59x = 979,880.49 × 253,883.94
  4. Step 4: Simplify right side
    653,212.59x = 248,775,919,530.33
  5. Step 5: Solve for x
    x = 248,775,919,530.33/653,212.59
  6. Step 6: Final answer
    x = 380,849.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.