Home / 809,140.40-1,213,872.60-240,520.40

Finding the Fourth Proportional to 809,140.40, 1,213,872.60 and 240,520.40

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Solution

The fourth proportional to 809,140.40, 1,213,872.60 and 240,520.40 is: 360,828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,140.40 : 1,213,872.60 = 240,520.40 : x
  2. Step 2: Convert to fraction form
    809,140.40/1,213,872.60 = 240,520.40/x
  3. Step 3: Cross multiply
    809,140.40x = 1,213,872.60 × 240,520.40
  4. Step 4: Simplify right side
    809,140.40x = 291,961,123,301.04
  5. Step 5: Solve for x
    x = 291,961,123,301.04/809,140.40
  6. Step 6: Final answer
    x = 360,828.76

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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.