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Finding the Fourth Proportional to 405,062.49, 607,453.03 and 225,422.06

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Solution

The fourth proportional to 405,062.49, 607,453.03 and 225,422.06 is: 338,054.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,062.49 : 607,453.03 = 225,422.06 : x
  2. Step 2: Convert to fraction form
    405,062.49/607,453.03 = 225,422.06/x
  3. Step 3: Cross multiply
    405,062.49x = 607,453.03 × 225,422.06
  4. Step 4: Simplify right side
    405,062.49x = 136,933,312,898.30
  5. Step 5: Solve for x
    x = 136,933,312,898.30/405,062.49
  6. Step 6: Final answer
    x = 338,054.78

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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.