Home / 1,158,128.20-1,736,609.10-684,958.60

Finding the Fourth Proportional to 1,158,128.20, 1,736,609.10 and 684,958.60

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Solution

The fourth proportional to 1,158,128.20, 1,736,609.10 and 684,958.60 is: 1,027,092.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,128.20 : 1,736,609.10 = 684,958.60 : x
  2. Step 2: Convert to fraction form
    1,158,128.20/1,736,609.10 = 684,958.60/x
  3. Step 3: Cross multiply
    1,158,128.20x = 1,736,609.10 × 684,958.60
  4. Step 4: Simplify right side
    1,158,128.20x = 1,189,505,337,883.26
  5. Step 5: Solve for x
    x = 1,189,505,337,883.26/1,158,128.20
  6. Step 6: Final answer
    x = 1,027,092.97

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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.