Home / 501,248.26-691,571.43-307,456.81

Finding the Fourth Proportional to 501,248.26, 691,571.43 and 307,456.81

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Solution

The fourth proportional to 501,248.26, 691,571.43 and 307,456.81 is: 424,197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,248.26 : 691,571.43 = 307,456.81 : x
  2. Step 2: Convert to fraction form
    501,248.26/691,571.43 = 307,456.81/x
  3. Step 3: Cross multiply
    501,248.26x = 691,571.43 × 307,456.81
  4. Step 4: Simplify right side
    501,248.26x = 212,628,345,754.94
  5. Step 5: Solve for x
    x = 212,628,345,754.94/501,248.26
  6. Step 6: Final answer
    x = 424,197.67

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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.