Home / 1,332,218.40-1,838,460.06-720,369.72

Finding the Fourth Proportional to 1,332,218.40, 1,838,460.06 and 720,369.72

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Solution

The fourth proportional to 1,332,218.40, 1,838,460.06 and 720,369.72 is: 994,109.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,218.40 : 1,838,460.06 = 720,369.72 : x
  2. Step 2: Convert to fraction form
    1,332,218.40/1,838,460.06 = 720,369.72/x
  3. Step 3: Cross multiply
    1,332,218.40x = 1,838,460.06 × 720,369.72
  4. Step 4: Simplify right side
    1,332,218.40x = 1,324,370,958,653.38
  5. Step 5: Solve for x
    x = 1,324,370,958,653.38/1,332,218.40
  6. Step 6: Final answer
    x = 994,109.49

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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.