Home / 801,438.50-1,105,985.13-443,765.54

Finding the Fourth Proportional to 801,438.50, 1,105,985.13 and 443,765.54

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Solution

The fourth proportional to 801,438.50, 1,105,985.13 and 443,765.54 is: 612,396.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,438.50 : 1,105,985.13 = 443,765.54 : x
  2. Step 2: Convert to fraction form
    801,438.50/1,105,985.13 = 443,765.54/x
  3. Step 3: Cross multiply
    801,438.50x = 1,105,985.13 × 443,765.54
  4. Step 4: Simplify right side
    801,438.50x = 490,798,088,446.42
  5. Step 5: Solve for x
    x = 490,798,088,446.42/801,438.50
  6. Step 6: Final answer
    x = 612,396.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.