Home / 501,187.28-691,767.96-310,087.76

Finding the Fourth Proportional to 501,187.28, 691,767.96 and 310,087.76

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Solution

The fourth proportional to 501,187.28, 691,767.96 and 310,087.76 is: 428,001.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,187.28 : 691,767.96 = 310,087.76 : x
  2. Step 2: Convert to fraction form
    501,187.28/691,767.96 = 310,087.76/x
  3. Step 3: Cross multiply
    501,187.28x = 691,767.96 × 310,087.76
  4. Step 4: Simplify right side
    501,187.28x = 214,508,777,156.17
  5. Step 5: Solve for x
    x = 214,508,777,156.17/501,187.28
  6. Step 6: Final answer
    x = 428,001.24

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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.