Home / 806,820.80-1,210,231.20-696,228.80

Finding the Fourth Proportional to 806,820.80, 1,210,231.20 and 696,228.80

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Solution

The fourth proportional to 806,820.80, 1,210,231.20 and 696,228.80 is: 1,044,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,820.80 : 1,210,231.20 = 696,228.80 : x
  2. Step 2: Convert to fraction form
    806,820.80/1,210,231.20 = 696,228.80/x
  3. Step 3: Cross multiply
    806,820.80x = 1,210,231.20 × 696,228.80
  4. Step 4: Simplify right side
    806,820.80x = 842,597,816,098.56
  5. Step 5: Solve for x
    x = 842,597,816,098.56/806,820.80
  6. Step 6: Final answer
    x = 1,044,343.20

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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.