Home / 727,633.80-1,091,450.70-664,648.20

Finding the Fourth Proportional to 727,633.80, 1,091,450.70 and 664,648.20

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Solution

The fourth proportional to 727,633.80, 1,091,450.70 and 664,648.20 is: 996,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,633.80 : 1,091,450.70 = 664,648.20 : x
  2. Step 2: Convert to fraction form
    727,633.80/1,091,450.70 = 664,648.20/x
  3. Step 3: Cross multiply
    727,633.80x = 1,091,450.70 × 664,648.20
  4. Step 4: Simplify right side
    727,633.80x = 725,430,743,143.74
  5. Step 5: Solve for x
    x = 725,430,743,143.74/727,633.80
  6. Step 6: Final answer
    x = 996,972.30

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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.