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Finding the Fourth Proportional to 1,294,568.31, 1,942,508.36 and 862,581.03

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Solution

The fourth proportional to 1,294,568.31, 1,942,508.36 and 862,581.03 is: 1,294,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,568.31 : 1,942,508.36 = 862,581.03 : x
  2. Step 2: Convert to fraction form
    1,294,568.31/1,942,508.36 = 862,581.03/x
  3. Step 3: Cross multiply
    1,294,568.31x = 1,942,508.36 × 862,581.03
  4. Step 4: Simplify right side
    1,294,568.31x = 1,675,570,857,639.51
  5. Step 5: Solve for x
    x = 1,675,570,857,639.51/1,294,568.31
  6. Step 6: Final answer
    x = 1,294,308.57

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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.