Home / 786,866.20-1,180,299.30-218,246.20

Finding the Fourth Proportional to 786,866.20, 1,180,299.30 and 218,246.20

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Solution

The fourth proportional to 786,866.20, 1,180,299.30 and 218,246.20 is: 327,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,866.20 : 1,180,299.30 = 218,246.20 : x
  2. Step 2: Convert to fraction form
    786,866.20/1,180,299.30 = 218,246.20/x
  3. Step 3: Cross multiply
    786,866.20x = 1,180,299.30 × 218,246.20
  4. Step 4: Simplify right side
    786,866.20x = 257,595,837,087.66
  5. Step 5: Solve for x
    x = 257,595,837,087.66/786,866.20
  6. Step 6: Final answer
    x = 327,369.30

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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.