Home / 1,920,356.64-2,881,540.80-1,246,279.20

Finding the Fourth Proportional to 1,920,356.64, 2,881,540.80 and 1,246,279.20

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Solution

The fourth proportional to 1,920,356.64, 2,881,540.80 and 1,246,279.20 is: 1,870,071.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,356.64 : 2,881,540.80 = 1,246,279.20 : x
  2. Step 2: Convert to fraction form
    1,920,356.64/2,881,540.80 = 1,246,279.20/x
  3. Step 3: Cross multiply
    1,920,356.64x = 2,881,540.80 × 1,246,279.20
  4. Step 4: Simplify right side
    1,920,356.64x = 3,591,204,362,991.36
  5. Step 5: Solve for x
    x = 3,591,204,362,991.36/1,920,356.64
  6. Step 6: Final answer
    x = 1,870,071.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.