Home / 421,453.17-582,084.41-283,391.91

Finding the Fourth Proportional to 421,453.17, 582,084.41 and 283,391.91

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Solution

The fourth proportional to 421,453.17, 582,084.41 and 283,391.91 is: 391,402.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,453.17 : 582,084.41 = 283,391.91 : x
  2. Step 2: Convert to fraction form
    421,453.17/582,084.41 = 283,391.91/x
  3. Step 3: Cross multiply
    421,453.17x = 582,084.41 × 283,391.91
  4. Step 4: Simplify right side
    421,453.17x = 164,958,011,314.16
  5. Step 5: Solve for x
    x = 164,958,011,314.16/421,453.17
  6. Step 6: Final answer
    x = 391,402.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.