Home / 1,332,576.36-1,838,949.89-720,729.81

Finding the Fourth Proportional to 1,332,576.36, 1,838,949.89 and 720,729.81

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Solution

The fourth proportional to 1,332,576.36, 1,838,949.89 and 720,729.81 is: 994,604.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,576.36 : 1,838,949.89 = 720,729.81 : x
  2. Step 2: Convert to fraction form
    1,332,576.36/1,838,949.89 = 720,729.81/x
  3. Step 3: Cross multiply
    1,332,576.36x = 1,838,949.89 × 720,729.81
  4. Step 4: Simplify right side
    1,332,576.36x = 1,325,386,001,215.57
  5. Step 5: Solve for x
    x = 1,325,386,001,215.57/1,332,576.36
  6. Step 6: Final answer
    x = 994,604.17

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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.