Home / 1,051,891.20-1,578,873.60-520,012.80

Finding the Fourth Proportional to 1,051,891.20, 1,578,873.60 and 520,012.80

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Solution

The fourth proportional to 1,051,891.20, 1,578,873.60 and 520,012.80 is: 780,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,891.20 : 1,578,873.60 = 520,012.80 : x
  2. Step 2: Convert to fraction form
    1,051,891.20/1,578,873.60 = 520,012.80/x
  3. Step 3: Cross multiply
    1,051,891.20x = 1,578,873.60 × 520,012.80
  4. Step 4: Simplify right side
    1,051,891.20x = 821,034,481,582.08
  5. Step 5: Solve for x
    x = 821,034,481,582.08/1,051,891.20
  6. Step 6: Final answer
    x = 780,531.75

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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.