Home / 1,436,981.52-1,983,082.36-783,643.28

Finding the Fourth Proportional to 1,436,981.52, 1,983,082.36 and 783,643.28

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Solution

The fourth proportional to 1,436,981.52, 1,983,082.36 and 783,643.28 is: 1,081,453.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,981.52 : 1,983,082.36 = 783,643.28 : x
  2. Step 2: Convert to fraction form
    1,436,981.52/1,983,082.36 = 783,643.28/x
  3. Step 3: Cross multiply
    1,436,981.52x = 1,983,082.36 × 783,643.28
  4. Step 4: Simplify right side
    1,436,981.52x = 1,554,029,165,100.54
  5. Step 5: Solve for x
    x = 1,554,029,165,100.54/1,436,981.52
  6. Step 6: Final answer
    x = 1,081,453.83

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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.