Home / 2,638,914.28-3,641,686.50-1,431,664.36

Finding the Fourth Proportional to 2,638,914.28, 3,641,686.50 and 1,431,664.36

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Solution

The fourth proportional to 2,638,914.28, 3,641,686.50 and 1,431,664.36 is: 1,975,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,914.28 : 3,641,686.50 = 1,431,664.36 : x
  2. Step 2: Convert to fraction form
    2,638,914.28/3,641,686.50 = 1,431,664.36/x
  3. Step 3: Cross multiply
    2,638,914.28x = 3,641,686.50 × 1,431,664.36
  4. Step 4: Simplify right side
    2,638,914.28x = 5,213,672,772,343.14
  5. Step 5: Solve for x
    x = 5,213,672,772,343.14/2,638,914.28
  6. Step 6: Final answer
    x = 1,975,688.57

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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.