Home / 703,404.20-1,055,559.90-388,087.40

Finding the Fourth Proportional to 703,404.20, 1,055,559.90 and 388,087.40

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Solution

The fourth proportional to 703,404.20, 1,055,559.90 and 388,087.40 is: 582,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,404.20 : 1,055,559.90 = 388,087.40 : x
  2. Step 2: Convert to fraction form
    703,404.20/1,055,559.90 = 388,087.40/x
  3. Step 3: Cross multiply
    703,404.20x = 1,055,559.90 × 388,087.40
  4. Step 4: Simplify right side
    703,404.20x = 409,649,497,135.26
  5. Step 5: Solve for x
    x = 409,649,497,135.26/703,404.20
  6. Step 6: Final answer
    x = 582,381.36

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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.