Home / 728,660.34-1,092,669.48-329,284.98

Finding the Fourth Proportional to 728,660.34, 1,092,669.48 and 329,284.98

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Solution

The fourth proportional to 728,660.34, 1,092,669.48 and 329,284.98 is: 493,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,660.34 : 1,092,669.48 = 329,284.98 : x
  2. Step 2: Convert to fraction form
    728,660.34/1,092,669.48 = 329,284.98/x
  3. Step 3: Cross multiply
    728,660.34x = 1,092,669.48 × 329,284.98
  4. Step 4: Simplify right side
    728,660.34x = 359,799,647,868.41
  5. Step 5: Solve for x
    x = 359,799,647,868.41/728,660.34
  6. Step 6: Final answer
    x = 493,782.40

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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.