Home / 607,987.20-911,999.22-208,622.28

Finding the Fourth Proportional to 607,987.20, 911,999.22 and 208,622.28

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Solution

The fourth proportional to 607,987.20, 911,999.22 and 208,622.28 is: 312,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,987.20 : 911,999.22 = 208,622.28 : x
  2. Step 2: Convert to fraction form
    607,987.20/911,999.22 = 208,622.28/x
  3. Step 3: Cross multiply
    607,987.20x = 911,999.22 × 208,622.28
  4. Step 4: Simplify right side
    607,987.20x = 190,263,356,634.62
  5. Step 5: Solve for x
    x = 190,263,356,634.62/607,987.20
  6. Step 6: Final answer
    x = 312,939.74

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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.