Home / 747,942.72-1,121,247.18-274,518.24

Finding the Fourth Proportional to 747,942.72, 1,121,247.18 and 274,518.24

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Solution

The fourth proportional to 747,942.72, 1,121,247.18 and 274,518.24 is: 411,532.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,942.72 : 1,121,247.18 = 274,518.24 : x
  2. Step 2: Convert to fraction form
    747,942.72/1,121,247.18 = 274,518.24/x
  3. Step 3: Cross multiply
    747,942.72x = 1,121,247.18 × 274,518.24
  4. Step 4: Simplify right side
    747,942.72x = 307,802,802,458.56
  5. Step 5: Solve for x
    x = 307,802,802,458.56/747,942.72
  6. Step 6: Final answer
    x = 411,532.59

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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.