Home / 831,266.57-1,147,148.04-449,292.17

Finding the Fourth Proportional to 831,266.57, 1,147,148.04 and 449,292.17

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Solution

The fourth proportional to 831,266.57, 1,147,148.04 and 449,292.17 is: 620,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,266.57 : 1,147,148.04 = 449,292.17 : x
  2. Step 2: Convert to fraction form
    831,266.57/1,147,148.04 = 449,292.17/x
  3. Step 3: Cross multiply
    831,266.57x = 1,147,148.04 × 449,292.17
  4. Step 4: Simplify right side
    831,266.57x = 515,404,626,467.11
  5. Step 5: Solve for x
    x = 515,404,626,467.11/831,266.57
  6. Step 6: Final answer
    x = 620,023.29

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Double scale
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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.