Home / 620,724.20-930,999.90-200,042.60

Finding the Fourth Proportional to 620,724.20, 930,999.90 and 200,042.60

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Solution

The fourth proportional to 620,724.20, 930,999.90 and 200,042.60 is: 300,036.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,724.20 : 930,999.90 = 200,042.60 : x
  2. Step 2: Convert to fraction form
    620,724.20/930,999.90 = 200,042.60/x
  3. Step 3: Cross multiply
    620,724.20x = 930,999.90 × 200,042.60
  4. Step 4: Simplify right side
    620,724.20x = 186,239,640,595.74
  5. Step 5: Solve for x
    x = 186,239,640,595.74/620,724.20
  6. Step 6: Final answer
    x = 300,036.06

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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.