Home / 1,369,391.36-1,889,123.32-886,112.70

Finding the Fourth Proportional to 1,369,391.36, 1,889,123.32 and 886,112.70

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Solution

The fourth proportional to 1,369,391.36, 1,889,123.32 and 886,112.70 is: 1,222,423.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,391.36 : 1,889,123.32 = 886,112.70 : x
  2. Step 2: Convert to fraction form
    1,369,391.36/1,889,123.32 = 886,112.70/x
  3. Step 3: Cross multiply
    1,369,391.36x = 1,889,123.32 × 886,112.70
  4. Step 4: Simplify right side
    1,369,391.36x = 1,673,976,165,718.16
  5. Step 5: Solve for x
    x = 1,673,976,165,718.16/1,369,391.36
  6. Step 6: Final answer
    x = 1,222,423.49

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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.