Home / 1,889,755.92-2,831,478.12-1,327,784.40

Finding the Fourth Proportional to 1,889,755.92, 2,831,478.12 and 1,327,784.40

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Solution

The fourth proportional to 1,889,755.92, 2,831,478.12 and 1,327,784.40 is: 1,989,459.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,755.92 : 2,831,478.12 = 1,327,784.40 : x
  2. Step 2: Convert to fraction form
    1,889,755.92/2,831,478.12 = 1,327,784.40/x
  3. Step 3: Cross multiply
    1,889,755.92x = 2,831,478.12 × 1,327,784.40
  4. Step 4: Simplify right side
    1,889,755.92x = 3,759,592,476,677.33
  5. Step 5: Solve for x
    x = 3,759,592,476,677.33/1,889,755.92
  6. Step 6: Final answer
    x = 1,989,459.29

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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.