Home / 667,556.85-1,001,335.05-443,355.03

Finding the Fourth Proportional to 667,556.85, 1,001,335.05 and 443,355.03

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Solution

The fourth proportional to 667,556.85, 1,001,335.05 and 443,355.03 is: 665,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,556.85 : 1,001,335.05 = 443,355.03 : x
  2. Step 2: Convert to fraction form
    667,556.85/1,001,335.05 = 443,355.03/x
  3. Step 3: Cross multiply
    667,556.85x = 1,001,335.05 × 443,355.03
  4. Step 4: Simplify right side
    667,556.85x = 443,946,931,132.80
  5. Step 5: Solve for x
    x = 443,946,931,132.80/667,556.85
  6. Step 6: Final answer
    x = 665,032.40

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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.