Home / 1,430,679.60-2,144,065.68-721,187.64

Finding the Fourth Proportional to 1,430,679.60, 2,144,065.68 and 721,187.64

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Solution

The fourth proportional to 1,430,679.60, 2,144,065.68 and 721,187.64 is: 1,080,796.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,679.60 : 2,144,065.68 = 721,187.64 : x
  2. Step 2: Convert to fraction form
    1,430,679.60/2,144,065.68 = 721,187.64/x
  3. Step 3: Cross multiply
    1,430,679.60x = 2,144,065.68 × 721,187.64
  4. Step 4: Simplify right side
    1,430,679.60x = 1,546,273,667,764.20
  5. Step 5: Solve for x
    x = 1,546,273,667,764.20/1,430,679.60
  6. Step 6: Final answer
    x = 1,080,796.61

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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.