Home / 695,321.60-1,042,982.40-274,380.80

Finding the Fourth Proportional to 695,321.60, 1,042,982.40 and 274,380.80

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Solution

The fourth proportional to 695,321.60, 1,042,982.40 and 274,380.80 is: 411,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,321.60 : 1,042,982.40 = 274,380.80 : x
  2. Step 2: Convert to fraction form
    695,321.60/1,042,982.40 = 274,380.80/x
  3. Step 3: Cross multiply
    695,321.60x = 1,042,982.40 × 274,380.80
  4. Step 4: Simplify right side
    695,321.60x = 286,174,345,297.92
  5. Step 5: Solve for x
    x = 286,174,345,297.92/695,321.60
  6. Step 6: Final answer
    x = 411,571.20

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1.5x scale

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.