Home / 747,470.80-1,121,206.20-214,960.60

Finding the Fourth Proportional to 747,470.80, 1,121,206.20 and 214,960.60

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Solution

The fourth proportional to 747,470.80, 1,121,206.20 and 214,960.60 is: 322,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,470.80 : 1,121,206.20 = 214,960.60 : x
  2. Step 2: Convert to fraction form
    747,470.80/1,121,206.20 = 214,960.60/x
  3. Step 3: Cross multiply
    747,470.80x = 1,121,206.20 × 214,960.60
  4. Step 4: Simplify right side
    747,470.80x = 241,015,157,475.72
  5. Step 5: Solve for x
    x = 241,015,157,475.72/747,470.80
  6. Step 6: Final answer
    x = 322,440.90

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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.