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Finding the Fourth Proportional to 888,219.40, 1,332,458.70 and 414,920.20

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Solution

The fourth proportional to 888,219.40, 1,332,458.70 and 414,920.20 is: 622,440.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,219.40 : 1,332,458.70 = 414,920.20 : x
  2. Step 2: Convert to fraction form
    888,219.40/1,332,458.70 = 414,920.20/x
  3. Step 3: Cross multiply
    888,219.40x = 1,332,458.70 × 414,920.20
  4. Step 4: Simplify right side
    888,219.40x = 552,864,030,295.74
  5. Step 5: Solve for x
    x = 552,864,030,295.74/888,219.40
  6. Step 6: Final answer
    x = 622,440.84

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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.