Home / 1,457,998.20-2,186,997.30-393,147.90

Finding the Fourth Proportional to 1,457,998.20, 2,186,997.30 and 393,147.90

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Solution

The fourth proportional to 1,457,998.20, 2,186,997.30 and 393,147.90 is: 589,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,998.20 : 2,186,997.30 = 393,147.90 : x
  2. Step 2: Convert to fraction form
    1,457,998.20/2,186,997.30 = 393,147.90/x
  3. Step 3: Cross multiply
    1,457,998.20x = 2,186,997.30 × 393,147.90
  4. Step 4: Simplify right side
    1,457,998.20x = 859,813,395,800.67
  5. Step 5: Solve for x
    x = 859,813,395,800.67/1,457,998.20
  6. Step 6: Final answer
    x = 589,721.85

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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.