Home / 1,120,164.28-1,680,246.77-278,716.03

Finding the Fourth Proportional to 1,120,164.28, 1,680,246.77 and 278,716.03

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Solution

The fourth proportional to 1,120,164.28, 1,680,246.77 and 278,716.03 is: 418,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,164.28 : 1,680,246.77 = 278,716.03 : x
  2. Step 2: Convert to fraction form
    1,120,164.28/1,680,246.77 = 278,716.03/x
  3. Step 3: Cross multiply
    1,120,164.28x = 1,680,246.77 × 278,716.03
  4. Step 4: Simplify right side
    1,120,164.28x = 468,311,709,154.72
  5. Step 5: Solve for x
    x = 468,311,709,154.72/1,120,164.28
  6. Step 6: Final answer
    x = 418,074.13

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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.