Home / 1,399,087.19-2,098,396.01-388,311.83

Finding the Fourth Proportional to 1,399,087.19, 2,098,396.01 and 388,311.83

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Solution

The fourth proportional to 1,399,087.19, 2,098,396.01 and 388,311.83 is: 582,402.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,087.19 : 2,098,396.01 = 388,311.83 : x
  2. Step 2: Convert to fraction form
    1,399,087.19/2,098,396.01 = 388,311.83/x
  3. Step 3: Cross multiply
    1,399,087.19x = 2,098,396.01 × 388,311.83
  4. Step 4: Simplify right side
    1,399,087.19x = 814,831,984,215.82
  5. Step 5: Solve for x
    x = 814,831,984,215.82/1,399,087.19
  6. Step 6: Final answer
    x = 582,402.58

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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.