Home / 819,057.84-1,228,581.90-211,846.20

Finding the Fourth Proportional to 819,057.84, 1,228,581.90 and 211,846.20

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Solution

The fourth proportional to 819,057.84, 1,228,581.90 and 211,846.20 is: 317,768.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,057.84 : 1,228,581.90 = 211,846.20 : x
  2. Step 2: Convert to fraction form
    819,057.84/1,228,581.90 = 211,846.20/x
  3. Step 3: Cross multiply
    819,057.84x = 1,228,581.90 × 211,846.20
  4. Step 4: Simplify right side
    819,057.84x = 260,270,406,903.78
  5. Step 5: Solve for x
    x = 260,270,406,903.78/819,057.84
  6. Step 6: Final answer
    x = 317,768.04

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Double scale
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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.