Home / 1,989,754.36-2,745,081.52-1,224,479.32

Finding the Fourth Proportional to 1,989,754.36, 2,745,081.52 and 1,224,479.32

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Solution

The fourth proportional to 1,989,754.36, 2,745,081.52 and 1,224,479.32 is: 1,689,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,754.36 : 2,745,081.52 = 1,224,479.32 : x
  2. Step 2: Convert to fraction form
    1,989,754.36/2,745,081.52 = 1,224,479.32/x
  3. Step 3: Cross multiply
    1,989,754.36x = 2,745,081.52 × 1,224,479.32
  4. Step 4: Simplify right side
    1,989,754.36x = 3,361,295,552,954.17
  5. Step 5: Solve for x
    x = 3,361,295,552,954.17/1,989,754.36
  6. Step 6: Final answer
    x = 1,689,301.77

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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.