Home / 743,147.40-1,114,721.10-443,965.80

Finding the Fourth Proportional to 743,147.40, 1,114,721.10 and 443,965.80

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Solution

The fourth proportional to 743,147.40, 1,114,721.10 and 443,965.80 is: 665,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,147.40 : 1,114,721.10 = 443,965.80 : x
  2. Step 2: Convert to fraction form
    743,147.40/1,114,721.10 = 443,965.80/x
  3. Step 3: Cross multiply
    743,147.40x = 1,114,721.10 × 443,965.80
  4. Step 4: Simplify right side
    743,147.40x = 494,898,044,938.38
  5. Step 5: Solve for x
    x = 494,898,044,938.38/743,147.40
  6. Step 6: Final answer
    x = 665,948.70

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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.