Home / 690,648.66-1,035,965.70-269,920.89

Finding the Fourth Proportional to 690,648.66, 1,035,965.70 and 269,920.89

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Solution

The fourth proportional to 690,648.66, 1,035,965.70 and 269,920.89 is: 404,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,648.66 : 1,035,965.70 = 269,920.89 : x
  2. Step 2: Convert to fraction form
    690,648.66/1,035,965.70 = 269,920.89/x
  3. Step 3: Cross multiply
    690,648.66x = 1,035,965.70 × 269,920.89
  4. Step 4: Simplify right side
    690,648.66x = 279,628,783,753.47
  5. Step 5: Solve for x
    x = 279,628,783,753.47/690,648.66
  6. Step 6: Final answer
    x = 404,878.49

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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.