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Finding the Fourth Proportional to 415,025.70, 622,538.55 and 379,596.30

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Solution

The fourth proportional to 415,025.70, 622,538.55 and 379,596.30 is: 569,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,025.70 : 622,538.55 = 379,596.30 : x
  2. Step 2: Convert to fraction form
    415,025.70/622,538.55 = 379,596.30/x
  3. Step 3: Cross multiply
    415,025.70x = 622,538.55 × 379,596.30
  4. Step 4: Simplify right side
    415,025.70x = 236,313,330,187.37
  5. Step 5: Solve for x
    x = 236,313,330,187.37/415,025.70
  6. Step 6: Final answer
    x = 569,394.45

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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.