Home / 729,705.70-1,091,606.10-641,132.20

Finding the Fourth Proportional to 729,705.70, 1,091,606.10 and 641,132.20

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Solution

The fourth proportional to 729,705.70, 1,091,606.10 and 641,132.20 is: 959,104.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,705.70 : 1,091,606.10 = 641,132.20 : x
  2. Step 2: Convert to fraction form
    729,705.70/1,091,606.10 = 641,132.20/x
  3. Step 3: Cross multiply
    729,705.70x = 1,091,606.10 × 641,132.20
  4. Step 4: Simplify right side
    729,705.70x = 699,863,820,426.42
  5. Step 5: Solve for x
    x = 699,863,820,426.42/729,705.70
  6. Step 6: Final answer
    x = 959,104.23

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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.