Home / 501,948.12-692,431.82-320,469.37

Finding the Fourth Proportional to 501,948.12, 692,431.82 and 320,469.37

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Solution

The fourth proportional to 501,948.12, 692,431.82 and 320,469.37 is: 442,083.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,948.12 : 692,431.82 = 320,469.37 : x
  2. Step 2: Convert to fraction form
    501,948.12/692,431.82 = 320,469.37/x
  3. Step 3: Cross multiply
    501,948.12x = 692,431.82 × 320,469.37
  4. Step 4: Simplify right side
    501,948.12x = 221,903,189,123.35
  5. Step 5: Solve for x
    x = 221,903,189,123.35/501,948.12
  6. Step 6: Final answer
    x = 442,083.91

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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.