Home / 843,610.30-1,265,415.45-274,990.30

Finding the Fourth Proportional to 843,610.30, 1,265,415.45 and 274,990.30

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Solution

The fourth proportional to 843,610.30, 1,265,415.45 and 274,990.30 is: 412,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,610.30 : 1,265,415.45 = 274,990.30 : x
  2. Step 2: Convert to fraction form
    843,610.30/1,265,415.45 = 274,990.30/x
  3. Step 3: Cross multiply
    843,610.30x = 1,265,415.45 × 274,990.30
  4. Step 4: Simplify right side
    843,610.30x = 347,976,974,220.14
  5. Step 5: Solve for x
    x = 347,976,974,220.14/843,610.30
  6. Step 6: Final answer
    x = 412,485.45

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Half scale
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Double scale
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Similar ratio
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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.