Home / 392,468.90-588,708.75-111,986.06

Finding the Fourth Proportional to 392,468.90, 588,708.75 and 111,986.06

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Solution

The fourth proportional to 392,468.90, 588,708.75 and 111,986.06 is: 167,980.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,468.90 : 588,708.75 = 111,986.06 : x
  2. Step 2: Convert to fraction form
    392,468.90/588,708.75 = 111,986.06/x
  3. Step 3: Cross multiply
    392,468.90x = 588,708.75 × 111,986.06
  4. Step 4: Simplify right side
    392,468.90x = 65,927,173,400.03
  5. Step 5: Solve for x
    x = 65,927,173,400.03/392,468.90
  6. Step 6: Final answer
    x = 167,980.63

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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.