Home / 791,669.76-1,187,558.40-318,355.20

Finding the Fourth Proportional to 791,669.76, 1,187,558.40 and 318,355.20

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Solution

The fourth proportional to 791,669.76, 1,187,558.40 and 318,355.20 is: 477,554.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,669.76 : 1,187,558.40 = 318,355.20 : x
  2. Step 2: Convert to fraction form
    791,669.76/1,187,558.40 = 318,355.20/x
  3. Step 3: Cross multiply
    791,669.76x = 1,187,558.40 × 318,355.20
  4. Step 4: Simplify right side
    791,669.76x = 378,065,391,943.68
  5. Step 5: Solve for x
    x = 378,065,391,943.68/791,669.76
  6. Step 6: Final answer
    x = 477,554.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.