Home / 726,707.40-1,090,449.90-306,025.80

Finding the Fourth Proportional to 726,707.40, 1,090,449.90 and 306,025.80

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Solution

The fourth proportional to 726,707.40, 1,090,449.90 and 306,025.80 is: 459,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,707.40 : 1,090,449.90 = 306,025.80 : x
  2. Step 2: Convert to fraction form
    726,707.40/1,090,449.90 = 306,025.80/x
  3. Step 3: Cross multiply
    726,707.40x = 1,090,449.90 × 306,025.80
  4. Step 4: Simplify right side
    726,707.40x = 333,705,803,007.42
  5. Step 5: Solve for x
    x = 333,705,803,007.42/726,707.40
  6. Step 6: Final answer
    x = 459,202.43

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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.