Home / 1,142,689.92-1,712,826.37-422,568.89

Finding the Fourth Proportional to 1,142,689.92, 1,712,826.37 and 422,568.89

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Solution

The fourth proportional to 1,142,689.92, 1,712,826.37 and 422,568.89 is: 633,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,689.92 : 1,712,826.37 = 422,568.89 : x
  2. Step 2: Convert to fraction form
    1,142,689.92/1,712,826.37 = 422,568.89/x
  3. Step 3: Cross multiply
    1,142,689.92x = 1,712,826.37 × 422,568.89
  4. Step 4: Simplify right side
    1,142,689.92x = 723,787,137,933.63
  5. Step 5: Solve for x
    x = 723,787,137,933.63/1,142,689.92
  6. Step 6: Final answer
    x = 633,406.43

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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.