Home / 738,192.61-1,107,408.17-311,792.54

Finding the Fourth Proportional to 738,192.61, 1,107,408.17 and 311,792.54

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Solution

The fourth proportional to 738,192.61, 1,107,408.17 and 311,792.54 is: 467,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,192.61 : 1,107,408.17 = 311,792.54 : x
  2. Step 2: Convert to fraction form
    738,192.61/1,107,408.17 = 311,792.54/x
  3. Step 3: Cross multiply
    738,192.61x = 1,107,408.17 × 311,792.54
  4. Step 4: Simplify right side
    738,192.61x = 345,281,601,383.49
  5. Step 5: Solve for x
    x = 345,281,601,383.49/738,192.61
  6. Step 6: Final answer
    x = 467,739.18

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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.