Home / 763,324.40-1,144,986.60-443,147.60

Finding the Fourth Proportional to 763,324.40, 1,144,986.60 and 443,147.60

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Solution

The fourth proportional to 763,324.40, 1,144,986.60 and 443,147.60 is: 664,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,324.40 : 1,144,986.60 = 443,147.60 : x
  2. Step 2: Convert to fraction form
    763,324.40/1,144,986.60 = 443,147.60/x
  3. Step 3: Cross multiply
    763,324.40x = 1,144,986.60 × 443,147.60
  4. Step 4: Simplify right side
    763,324.40x = 507,398,063,822.16
  5. Step 5: Solve for x
    x = 507,398,063,822.16/763,324.40
  6. Step 6: Final answer
    x = 664,721.40

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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.