Home / 1,098,108.38-1,647,114-299,390

Finding the Fourth Proportional to 1,098,108.38, 1,647,114 and 299,390

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Solution

The fourth proportional to 1,098,108.38, 1,647,114 and 299,390 is: 449,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,108.38 : 1,647,114 = 299,390 : x
  2. Step 2: Convert to fraction form
    1,098,108.38/1,647,114 = 299,390/x
  3. Step 3: Cross multiply
    1,098,108.38x = 1,647,114 × 299,390
  4. Step 4: Simplify right side
    1,098,108.38x = 493,129,460,460
  5. Step 5: Solve for x
    x = 493,129,460,460/1,098,108.38
  6. Step 6: Final answer
    x = 449,071.76

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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.