Home / 831,306.37-1,147,202.16-449,333.16

Finding the Fourth Proportional to 831,306.37, 1,147,202.16 and 449,333.16

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Solution

The fourth proportional to 831,306.37, 1,147,202.16 and 449,333.16 is: 620,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,306.37 : 1,147,202.16 = 449,333.16 : x
  2. Step 2: Convert to fraction form
    831,306.37/1,147,202.16 = 449,333.16/x
  3. Step 3: Cross multiply
    831,306.37x = 1,147,202.16 × 449,333.16
  4. Step 4: Simplify right side
    831,306.37x = 515,475,971,711.63
  5. Step 5: Solve for x
    x = 515,475,971,711.63/831,306.37
  6. Step 6: Final answer
    x = 620,079.42

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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.