Home / 1,225,124.73-1,690,713.21-673,863.76

Finding the Fourth Proportional to 1,225,124.73, 1,690,713.21 and 673,863.76

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Solution

The fourth proportional to 1,225,124.73, 1,690,713.21 and 673,863.76 is: 929,954.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,124.73 : 1,690,713.21 = 673,863.76 : x
  2. Step 2: Convert to fraction form
    1,225,124.73/1,690,713.21 = 673,863.76/x
  3. Step 3: Cross multiply
    1,225,124.73x = 1,690,713.21 × 673,863.76
  4. Step 4: Simplify right side
    1,225,124.73x = 1,139,310,352,111.90
  5. Step 5: Solve for x
    x = 1,139,310,352,111.90/1,225,124.73
  6. Step 6: Final answer
    x = 929,954.58

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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.