Home / 809,330.10-1,214,140.95-336,063.30

Finding the Fourth Proportional to 809,330.10, 1,214,140.95 and 336,063.30

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Solution

The fourth proportional to 809,330.10, 1,214,140.95 and 336,063.30 is: 504,155.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,330.10 : 1,214,140.95 = 336,063.30 : x
  2. Step 2: Convert to fraction form
    809,330.10/1,214,140.95 = 336,063.30/x
  3. Step 3: Cross multiply
    809,330.10x = 1,214,140.95 × 336,063.30
  4. Step 4: Simplify right side
    809,330.10x = 408,028,214,322.14
  5. Step 5: Solve for x
    x = 408,028,214,322.14/809,330.10
  6. Step 6: Final answer
    x = 504,155.49

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Double scale
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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.