Home / 1,332,192.48-1,838,424.32-720,343.78

Finding the Fourth Proportional to 1,332,192.48, 1,838,424.32 and 720,343.78

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Solution

The fourth proportional to 1,332,192.48, 1,838,424.32 and 720,343.78 is: 994,073.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,192.48 : 1,838,424.32 = 720,343.78 : x
  2. Step 2: Convert to fraction form
    1,332,192.48/1,838,424.32 = 720,343.78/x
  3. Step 3: Cross multiply
    1,332,192.48x = 1,838,424.32 × 720,343.78
  4. Step 4: Simplify right side
    1,332,192.48x = 1,324,297,521,117.53
  5. Step 5: Solve for x
    x = 1,324,297,521,117.53/1,332,192.48
  6. Step 6: Final answer
    x = 994,073.71

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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.