Home / 690,450.75-1,035,689.09-191,827.71

Finding the Fourth Proportional to 690,450.75, 1,035,689.09 and 191,827.71

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Solution

The fourth proportional to 690,450.75, 1,035,689.09 and 191,827.71 is: 287,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,450.75 : 1,035,689.09 = 191,827.71 : x
  2. Step 2: Convert to fraction form
    690,450.75/1,035,689.09 = 191,827.71/x
  3. Step 3: Cross multiply
    690,450.75x = 1,035,689.09 × 191,827.71
  4. Step 4: Simplify right side
    690,450.75x = 198,673,865,447.55
  5. Step 5: Solve for x
    x = 198,673,865,447.55/690,450.75
  6. Step 6: Final answer
    x = 287,745.17

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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.