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Finding the Fourth Proportional to 413,740.40, 620,610.60 and 203,334.80

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Solution

The fourth proportional to 413,740.40, 620,610.60 and 203,334.80 is: 305,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,740.40 : 620,610.60 = 203,334.80 : x
  2. Step 2: Convert to fraction form
    413,740.40/620,610.60 = 203,334.80/x
  3. Step 3: Cross multiply
    413,740.40x = 620,610.60 × 203,334.80
  4. Step 4: Simplify right side
    413,740.40x = 126,191,732,228.88
  5. Step 5: Solve for x
    x = 126,191,732,228.88/413,740.40
  6. Step 6: Final answer
    x = 305,002.20

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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.