Home / 865,669.70-1,298,504.55-274,693.70

Finding the Fourth Proportional to 865,669.70, 1,298,504.55 and 274,693.70

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Solution

The fourth proportional to 865,669.70, 1,298,504.55 and 274,693.70 is: 412,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,669.70 : 1,298,504.55 = 274,693.70 : x
  2. Step 2: Convert to fraction form
    865,669.70/1,298,504.55 = 274,693.70/x
  3. Step 3: Cross multiply
    865,669.70x = 1,298,504.55 × 274,693.70
  4. Step 4: Simplify right side
    865,669.70x = 356,691,019,306.34
  5. Step 5: Solve for x
    x = 356,691,019,306.34/865,669.70
  6. Step 6: Final answer
    x = 412,040.55

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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.