Home / 501,288.19-691,781.12-274,935.31

Finding the Fourth Proportional to 501,288.19, 691,781.12 and 274,935.31

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Solution

The fourth proportional to 501,288.19, 691,781.12 and 274,935.31 is: 379,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,288.19 : 691,781.12 = 274,935.31 : x
  2. Step 2: Convert to fraction form
    501,288.19/691,781.12 = 274,935.31/x
  3. Step 3: Cross multiply
    501,288.19x = 691,781.12 × 274,935.31
  4. Step 4: Simplify right side
    501,288.19x = 190,195,056,679.35
  5. Step 5: Solve for x
    x = 190,195,056,679.35/501,288.19
  6. Step 6: Final answer
    x = 379,412.60

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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.