Home / 831,015.49-1,247,084.12-325,513.77

Finding the Fourth Proportional to 831,015.49, 1,247,084.12 and 325,513.77

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Solution

The fourth proportional to 831,015.49, 1,247,084.12 and 325,513.77 is: 488,490.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,015.49 : 1,247,084.12 = 325,513.77 : x
  2. Step 2: Convert to fraction form
    831,015.49/1,247,084.12 = 325,513.77/x
  3. Step 3: Cross multiply
    831,015.49x = 1,247,084.12 × 325,513.77
  4. Step 4: Simplify right side
    831,015.49x = 405,943,053,408.33
  5. Step 5: Solve for x
    x = 405,943,053,408.33/831,015.49
  6. Step 6: Final answer
    x = 488,490.36

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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.