Home / 727,470.80-1,091,206.20-664,485.20

Finding the Fourth Proportional to 727,470.80, 1,091,206.20 and 664,485.20

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Solution

The fourth proportional to 727,470.80, 1,091,206.20 and 664,485.20 is: 996,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,470.80 : 1,091,206.20 = 664,485.20 : x
  2. Step 2: Convert to fraction form
    727,470.80/1,091,206.20 = 664,485.20/x
  3. Step 3: Cross multiply
    727,470.80x = 1,091,206.20 × 664,485.20
  4. Step 4: Simplify right side
    727,470.80x = 725,090,370,048.24
  5. Step 5: Solve for x
    x = 725,090,370,048.24/727,470.80
  6. Step 6: Final answer
    x = 996,727.80

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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.