Home / 1,389,405.33-2,084,069.12-442,832.85

Finding the Fourth Proportional to 1,389,405.33, 2,084,069.12 and 442,832.85

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Solution

The fourth proportional to 1,389,405.33, 2,084,069.12 and 442,832.85 is: 664,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,405.33 : 2,084,069.12 = 442,832.85 : x
  2. Step 2: Convert to fraction form
    1,389,405.33/2,084,069.12 = 442,832.85/x
  3. Step 3: Cross multiply
    1,389,405.33x = 2,084,069.12 × 442,832.85
  4. Step 4: Simplify right side
    1,389,405.33x = 922,894,265,792.43
  5. Step 5: Solve for x
    x = 922,894,265,792.43/1,389,405.33
  6. Step 6: Final answer
    x = 664,236.88

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1.5x scale

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.