Home / 1,109,958.17-1,664,949.83-390,321.27

Finding the Fourth Proportional to 1,109,958.17, 1,664,949.83 and 390,321.27

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Solution

The fourth proportional to 1,109,958.17, 1,664,949.83 and 390,321.27 is: 585,486.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,958.17 : 1,664,949.83 = 390,321.27 : x
  2. Step 2: Convert to fraction form
    1,109,958.17/1,664,949.83 = 390,321.27/x
  3. Step 3: Cross multiply
    1,109,958.17x = 1,664,949.83 × 390,321.27
  4. Step 4: Simplify right side
    1,109,958.17x = 649,865,330,180.28
  5. Step 5: Solve for x
    x = 649,865,330,180.28/1,109,958.17
  6. Step 6: Final answer
    x = 585,486.33

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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.