Home / 535,918.73-739,540.01-318,136.46

Finding the Fourth Proportional to 535,918.73, 739,540.01 and 318,136.46

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Solution

The fourth proportional to 535,918.73, 739,540.01 and 318,136.46 is: 439,011.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,918.73 : 739,540.01 = 318,136.46 : x
  2. Step 2: Convert to fraction form
    535,918.73/739,540.01 = 318,136.46/x
  3. Step 3: Cross multiply
    535,918.73x = 739,540.01 × 318,136.46
  4. Step 4: Simplify right side
    535,918.73x = 235,274,637,907.41
  5. Step 5: Solve for x
    x = 235,274,637,907.41/535,918.73
  6. Step 6: Final answer
    x = 439,011.79

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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.