Home / 809,084.30-1,214,112.45-335,720.30

Finding the Fourth Proportional to 809,084.30, 1,214,112.45 and 335,720.30

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Solution

The fourth proportional to 809,084.30, 1,214,112.45 and 335,720.30 is: 503,782.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,084.30 : 1,214,112.45 = 335,720.30 : x
  2. Step 2: Convert to fraction form
    809,084.30/1,214,112.45 = 335,720.30/x
  3. Step 3: Cross multiply
    809,084.30x = 1,214,112.45 × 335,720.30
  4. Step 4: Simplify right side
    809,084.30x = 407,602,195,947.74
  5. Step 5: Solve for x
    x = 407,602,195,947.74/809,084.30
  6. Step 6: Final answer
    x = 503,782.11

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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.