Home / 2,276,578.40-3,142,268.32-1,309,807.68

Finding the Fourth Proportional to 2,276,578.40, 3,142,268.32 and 1,309,807.68

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Solution

The fourth proportional to 2,276,578.40, 3,142,268.32 and 1,309,807.68 is: 1,807,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276,578.40 : 3,142,268.32 = 1,309,807.68 : x
  2. Step 2: Convert to fraction form
    2,276,578.40/3,142,268.32 = 1,309,807.68/x
  3. Step 3: Cross multiply
    2,276,578.40x = 3,142,268.32 × 1,309,807.68
  4. Step 4: Simplify right side
    2,276,578.40x = 4,115,767,178,156.70
  5. Step 5: Solve for x
    x = 4,115,767,178,156.70/2,276,578.40
  6. Step 6: Final answer
    x = 1,807,874.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.