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Finding the Fourth Proportional to 980,472.87, 1,470,794.01 and 270,500.91

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Solution

The fourth proportional to 980,472.87, 1,470,794.01 and 270,500.91 is: 405,774.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,472.87 : 1,470,794.01 = 270,500.91 : x
  2. Step 2: Convert to fraction form
    980,472.87/1,470,794.01 = 270,500.91/x
  3. Step 3: Cross multiply
    980,472.87x = 1,470,794.01 × 270,500.91
  4. Step 4: Simplify right side
    980,472.87x = 397,851,110,773.58
  5. Step 5: Solve for x
    x = 397,851,110,773.58/980,472.87
  6. Step 6: Final answer
    x = 405,774.73

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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.