Home / 1,325,429.60-1,829,079.24-721,817.60

Finding the Fourth Proportional to 1,325,429.60, 1,829,079.24 and 721,817.60

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Solution

The fourth proportional to 1,325,429.60, 1,829,079.24 and 721,817.60 is: 996,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,429.60 : 1,829,079.24 = 721,817.60 : x
  2. Step 2: Convert to fraction form
    1,325,429.60/1,829,079.24 = 721,817.60/x
  3. Step 3: Cross multiply
    1,325,429.60x = 1,829,079.24 × 721,817.60
  4. Step 4: Simplify right side
    1,325,429.60x = 1,320,261,587,226.62
  5. Step 5: Solve for x
    x = 1,320,261,587,226.62/1,325,429.60
  6. Step 6: Final answer
    x = 996,100.88

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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.