Home / 1,214,578.60-1,821,867.90-1,123,340.20

Finding the Fourth Proportional to 1,214,578.60, 1,821,867.90 and 1,123,340.20

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Solution

The fourth proportional to 1,214,578.60, 1,821,867.90 and 1,123,340.20 is: 1,685,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,578.60 : 1,821,867.90 = 1,123,340.20 : x
  2. Step 2: Convert to fraction form
    1,214,578.60/1,821,867.90 = 1,123,340.20/x
  3. Step 3: Cross multiply
    1,214,578.60x = 1,821,867.90 × 1,123,340.20
  4. Step 4: Simplify right side
    1,214,578.60x = 2,046,577,451,159.58
  5. Step 5: Solve for x
    x = 2,046,577,451,159.58/1,214,578.60
  6. Step 6: Final answer
    x = 1,685,010.30

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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.