Home / 831,556.80-1,147,551.17-449,586.32

Finding the Fourth Proportional to 831,556.80, 1,147,551.17 and 449,586.32

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Solution

The fourth proportional to 831,556.80, 1,147,551.17 and 449,586.32 is: 620,430.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,556.80 : 1,147,551.17 = 449,586.32 : x
  2. Step 2: Convert to fraction form
    831,556.80/1,147,551.17 = 449,586.32/x
  3. Step 3: Cross multiply
    831,556.80x = 1,147,551.17 × 449,586.32
  4. Step 4: Simplify right side
    831,556.80x = 515,923,299,546.31
  5. Step 5: Solve for x
    x = 515,923,299,546.31/831,556.80
  6. Step 6: Final answer
    x = 620,430.62

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Double scale
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1.5x scale

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.