Home / 762,640.18-1,142,778.65-481,566.94

Finding the Fourth Proportional to 762,640.18, 1,142,778.65 and 481,566.94

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Solution

The fourth proportional to 762,640.18, 1,142,778.65 and 481,566.94 is: 721,604.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,640.18 : 1,142,778.65 = 481,566.94 : x
  2. Step 2: Convert to fraction form
    762,640.18/1,142,778.65 = 481,566.94/x
  3. Step 3: Cross multiply
    762,640.18x = 1,142,778.65 × 481,566.94
  4. Step 4: Simplify right side
    762,640.18x = 550,324,412,313.05
  5. Step 5: Solve for x
    x = 550,324,412,313.05/762,640.18
  6. Step 6: Final answer
    x = 721,604.27

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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.