Home / 405,001.20-607,890.60-205,546.80

Finding the Fourth Proportional to 405,001.20, 607,890.60 and 205,546.80

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Solution

The fourth proportional to 405,001.20, 607,890.60 and 205,546.80 is: 308,517.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,001.20 : 607,890.60 = 205,546.80 : x
  2. Step 2: Convert to fraction form
    405,001.20/607,890.60 = 205,546.80/x
  3. Step 3: Cross multiply
    405,001.20x = 607,890.60 × 205,546.80
  4. Step 4: Simplify right side
    405,001.20x = 124,949,967,580.08
  5. Step 5: Solve for x
    x = 124,949,967,580.08/405,001.20
  6. Step 6: Final answer
    x = 308,517.52

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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.