Home / 1,490,643.60-2,233,997.10-1,321,369.80

Finding the Fourth Proportional to 1,490,643.60, 2,233,997.10 and 1,321,369.80

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Solution

The fourth proportional to 1,490,643.60, 2,233,997.10 and 1,321,369.80 is: 1,980,309.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,643.60 : 2,233,997.10 = 1,321,369.80 : x
  2. Step 2: Convert to fraction form
    1,490,643.60/2,233,997.10 = 1,321,369.80/x
  3. Step 3: Cross multiply
    1,490,643.60x = 2,233,997.10 × 1,321,369.80
  4. Step 4: Simplify right side
    1,490,643.60x = 2,951,936,301,227.58
  5. Step 5: Solve for x
    x = 2,951,936,301,227.58/1,490,643.60
  6. Step 6: Final answer
    x = 1,980,309.92

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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.