Home / 729,487.80-1,091,607.30-493,291.80

Finding the Fourth Proportional to 729,487.80, 1,091,607.30 and 493,291.80

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Solution

The fourth proportional to 729,487.80, 1,091,607.30 and 493,291.80 is: 738,163.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,487.80 : 1,091,607.30 = 493,291.80 : x
  2. Step 2: Convert to fraction form
    729,487.80/1,091,607.30 = 493,291.80/x
  3. Step 3: Cross multiply
    729,487.80x = 1,091,607.30 × 493,291.80
  4. Step 4: Simplify right side
    729,487.80x = 538,480,929,910.14
  5. Step 5: Solve for x
    x = 538,480,929,910.14/729,487.80
  6. Step 6: Final answer
    x = 738,163.04

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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.