Home / 501,190.84-691,638.78-274,831.48

Finding the Fourth Proportional to 501,190.84, 691,638.78 and 274,831.48

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Solution

The fourth proportional to 501,190.84, 691,638.78 and 274,831.48 is: 379,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,190.84 : 691,638.78 = 274,831.48 : x
  2. Step 2: Convert to fraction form
    501,190.84/691,638.78 = 274,831.48/x
  3. Step 3: Cross multiply
    501,190.84x = 691,638.78 × 274,831.48
  4. Step 4: Simplify right side
    501,190.84x = 190,084,109,532.79
  5. Step 5: Solve for x
    x = 190,084,109,532.79/501,190.84
  6. Step 6: Final answer
    x = 379,264.93

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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.