Home / 1,073,142.20-1,612,823.70-936,284.60

Finding the Fourth Proportional to 1,073,142.20, 1,612,823.70 and 936,284.60

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Solution

The fourth proportional to 1,073,142.20, 1,612,823.70 and 936,284.60 is: 1,407,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,142.20 : 1,612,823.70 = 936,284.60 : x
  2. Step 2: Convert to fraction form
    1,073,142.20/1,612,823.70 = 936,284.60/x
  3. Step 3: Cross multiply
    1,073,142.20x = 1,612,823.70 × 936,284.60
  4. Step 4: Simplify right side
    1,073,142.20x = 1,510,061,992,825.02
  5. Step 5: Solve for x
    x = 1,510,061,992,825.02/1,073,142.20
  6. Step 6: Final answer
    x = 1,407,140.63

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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.