Home / 920,472.82-1,380,100.11-440,771.38

Finding the Fourth Proportional to 920,472.82, 1,380,100.11 and 440,771.38

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Solution

The fourth proportional to 920,472.82, 1,380,100.11 and 440,771.38 is: 660,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,472.82 : 1,380,100.11 = 440,771.38 : x
  2. Step 2: Convert to fraction form
    920,472.82/1,380,100.11 = 440,771.38/x
  3. Step 3: Cross multiply
    920,472.82x = 1,380,100.11 × 440,771.38
  4. Step 4: Simplify right side
    920,472.82x = 608,308,630,022.85
  5. Step 5: Solve for x
    x = 608,308,630,022.85/920,472.82
  6. Step 6: Final answer
    x = 660,865.39

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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.