Home / 813,136.58-1,218,892.90-543,491.83

Finding the Fourth Proportional to 813,136.58, 1,218,892.90 and 543,491.83

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Solution

The fourth proportional to 813,136.58, 1,218,892.90 and 543,491.83 is: 814,695.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,136.58 : 1,218,892.90 = 543,491.83 : x
  2. Step 2: Convert to fraction form
    813,136.58/1,218,892.90 = 543,491.83/x
  3. Step 3: Cross multiply
    813,136.58x = 1,218,892.90 × 543,491.83
  4. Step 4: Simplify right side
    813,136.58x = 662,458,332,795.01
  5. Step 5: Solve for x
    x = 662,458,332,795.01/813,136.58
  6. Step 6: Final answer
    x = 814,695.03

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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.