Home / 831,402.72-1,247,127.32-270,437.22

Finding the Fourth Proportional to 831,402.72, 1,247,127.32 and 270,437.22

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Solution

The fourth proportional to 831,402.72, 1,247,127.32 and 270,437.22 is: 405,663.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,402.72 : 1,247,127.32 = 270,437.22 : x
  2. Step 2: Convert to fraction form
    831,402.72/1,247,127.32 = 270,437.22/x
  3. Step 3: Cross multiply
    831,402.72x = 1,247,127.32 × 270,437.22
  4. Step 4: Simplify right side
    831,402.72x = 337,269,645,406.85
  5. Step 5: Solve for x
    x = 337,269,645,406.85/831,402.72
  6. Step 6: Final answer
    x = 405,663.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.