Home / 869,101.40-1,303,749.30-270,057.80

Finding the Fourth Proportional to 869,101.40, 1,303,749.30 and 270,057.80

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Solution

The fourth proportional to 869,101.40, 1,303,749.30 and 270,057.80 is: 405,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,101.40 : 1,303,749.30 = 270,057.80 : x
  2. Step 2: Convert to fraction form
    869,101.40/1,303,749.30 = 270,057.80/x
  3. Step 3: Cross multiply
    869,101.40x = 1,303,749.30 × 270,057.80
  4. Step 4: Simplify right side
    869,101.40x = 352,087,667,709.54
  5. Step 5: Solve for x
    x = 352,087,667,709.54/869,101.40
  6. Step 6: Final answer
    x = 405,116.90

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Double scale
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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.