Home / 405,491.24-607,839.60-225,662.40

Finding the Fourth Proportional to 405,491.24, 607,839.60 and 225,662.40

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Solution

The fourth proportional to 405,491.24, 607,839.60 and 225,662.40 is: 338,272.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,491.24 : 607,839.60 = 225,662.40 : x
  2. Step 2: Convert to fraction form
    405,491.24/607,839.60 = 225,662.40/x
  3. Step 3: Cross multiply
    405,491.24x = 607,839.60 × 225,662.40
  4. Step 4: Simplify right side
    405,491.24x = 137,166,542,951.04
  5. Step 5: Solve for x
    x = 137,166,542,951.04/405,491.24
  6. Step 6: Final answer
    x = 338,272.52

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1.5x scale

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.