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Finding the Fourth Proportional to 440,352.05, 660,524.57 and 261,675.77

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Solution

The fourth proportional to 440,352.05, 660,524.57 and 261,675.77 is: 392,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,352.05 : 660,524.57 = 261,675.77 : x
  2. Step 2: Convert to fraction form
    440,352.05/660,524.57 = 261,675.77/x
  3. Step 3: Cross multiply
    440,352.05x = 660,524.57 × 261,675.77
  4. Step 4: Simplify right side
    440,352.05x = 172,843,273,300.88
  5. Step 5: Solve for x
    x = 172,843,273,300.88/440,352.05
  6. Step 6: Final answer
    x = 392,511.57

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1.5x scale

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.