Home / 703,991.20-1,055,209.20-388,674.40

Finding the Fourth Proportional to 703,991.20, 1,055,209.20 and 388,674.40

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Solution

The fourth proportional to 703,991.20, 1,055,209.20 and 388,674.40 is: 582,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,991.20 : 1,055,209.20 = 388,674.40 : x
  2. Step 2: Convert to fraction form
    703,991.20/1,055,209.20 = 388,674.40/x
  3. Step 3: Cross multiply
    703,991.20x = 1,055,209.20 × 388,674.40
  4. Step 4: Simplify right side
    703,991.20x = 410,132,802,684.48
  5. Step 5: Solve for x
    x = 410,132,802,684.48/703,991.20
  6. Step 6: Final answer
    x = 582,582.29

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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.