Home / 690,640.51-1,035,953.48-269,912.74

Finding the Fourth Proportional to 690,640.51, 1,035,953.48 and 269,912.74

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Solution

The fourth proportional to 690,640.51, 1,035,953.48 and 269,912.74 is: 404,866.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,640.51 : 1,035,953.48 = 269,912.74 : x
  2. Step 2: Convert to fraction form
    690,640.51/1,035,953.48 = 269,912.74/x
  3. Step 3: Cross multiply
    690,640.51x = 1,035,953.48 × 269,912.74
  4. Step 4: Simplify right side
    690,640.51x = 279,617,044,101.56
  5. Step 5: Solve for x
    x = 279,617,044,101.56/690,640.51
  6. Step 6: Final answer
    x = 404,866.26

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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.