Home / 831,306.81-1,147,202.71-449,333.59

Finding the Fourth Proportional to 831,306.81, 1,147,202.71 and 449,333.59

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Solution

The fourth proportional to 831,306.81, 1,147,202.71 and 449,333.59 is: 620,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,306.81 : 1,147,202.71 = 449,333.59 : x
  2. Step 2: Convert to fraction form
    831,306.81/1,147,202.71 = 449,333.59/x
  3. Step 3: Cross multiply
    831,306.81x = 1,147,202.71 × 449,333.59
  4. Step 4: Simplify right side
    831,306.81x = 515,476,712,142.03
  5. Step 5: Solve for x
    x = 515,476,712,142.03/831,306.81
  6. Step 6: Final answer
    x = 620,079.98

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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.