Home / 813,179.46-1,219,829.12-214,136.46

Finding the Fourth Proportional to 813,179.46, 1,219,829.12 and 214,136.46

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Solution

The fourth proportional to 813,179.46, 1,219,829.12 and 214,136.46 is: 321,220.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,179.46 : 1,219,829.12 = 214,136.46 : x
  2. Step 2: Convert to fraction form
    813,179.46/1,219,829.12 = 214,136.46/x
  3. Step 3: Cross multiply
    813,179.46x = 1,219,829.12 × 214,136.46
  4. Step 4: Simplify right side
    813,179.46x = 261,209,889,561.72
  5. Step 5: Solve for x
    x = 261,209,889,561.72/813,179.46
  6. Step 6: Final answer
    x = 321,220.47

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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.