Home / 803,982.43-1,200,190.42-688,890.90

Finding the Fourth Proportional to 803,982.43, 1,200,190.42 and 688,890.90

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Solution

The fourth proportional to 803,982.43, 1,200,190.42 and 688,890.90 is: 1,028,381.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,982.43 : 1,200,190.42 = 688,890.90 : x
  2. Step 2: Convert to fraction form
    803,982.43/1,200,190.42 = 688,890.90/x
  3. Step 3: Cross multiply
    803,982.43x = 1,200,190.42 × 688,890.90
  4. Step 4: Simplify right side
    803,982.43x = 826,800,256,716.46
  5. Step 5: Solve for x
    x = 826,800,256,716.46/803,982.43
  6. Step 6: Final answer
    x = 1,028,381.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.