Home / 1,998,620.56-2,758,027.62-1,139,457.52

Finding the Fourth Proportional to 1,998,620.56, 2,758,027.62 and 1,139,457.52

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Solution

The fourth proportional to 1,998,620.56, 2,758,027.62 and 1,139,457.52 is: 1,572,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,620.56 : 2,758,027.62 = 1,139,457.52 : x
  2. Step 2: Convert to fraction form
    1,998,620.56/2,758,027.62 = 1,139,457.52/x
  3. Step 3: Cross multiply
    1,998,620.56x = 2,758,027.62 × 1,139,457.52
  4. Step 4: Simplify right side
    1,998,620.56x = 3,142,655,311,976.70
  5. Step 5: Solve for x
    x = 3,142,655,311,976.70/1,998,620.56
  6. Step 6: Final answer
    x = 1,572,412.18

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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.