Home / 449,640.16-674,792.86-212,983.38

Finding the Fourth Proportional to 449,640.16, 674,792.86 and 212,983.38

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Solution

The fourth proportional to 449,640.16, 674,792.86 and 212,983.38 is: 319,632.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,640.16 : 674,792.86 = 212,983.38 : x
  2. Step 2: Convert to fraction form
    449,640.16/674,792.86 = 212,983.38/x
  3. Step 3: Cross multiply
    449,640.16x = 674,792.86 × 212,983.38
  4. Step 4: Simplify right side
    449,640.16x = 143,719,664,122.67
  5. Step 5: Solve for x
    x = 143,719,664,122.67/449,640.16
  6. Step 6: Final answer
    x = 319,632.62

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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.