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Finding the Fourth Proportional to 888,213.40, 1,332,449.70 and 414,914.20

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Solution

The fourth proportional to 888,213.40, 1,332,449.70 and 414,914.20 is: 622,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,213.40 : 1,332,449.70 = 414,914.20 : x
  2. Step 2: Convert to fraction form
    888,213.40/1,332,449.70 = 414,914.20/x
  3. Step 3: Cross multiply
    888,213.40x = 1,332,449.70 × 414,914.20
  4. Step 4: Simplify right side
    888,213.40x = 552,852,301,315.74
  5. Step 5: Solve for x
    x = 552,852,301,315.74/888,213.40
  6. Step 6: Final answer
    x = 622,431.84

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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.