Home / 1,420,168.74-1,959,846.22-808,291.50

Finding the Fourth Proportional to 1,420,168.74, 1,959,846.22 and 808,291.50

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Solution

The fourth proportional to 1,420,168.74, 1,959,846.22 and 808,291.50 is: 1,115,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,168.74 : 1,959,846.22 = 808,291.50 : x
  2. Step 2: Convert to fraction form
    1,420,168.74/1,959,846.22 = 808,291.50/x
  3. Step 3: Cross multiply
    1,420,168.74x = 1,959,846.22 × 808,291.50
  4. Step 4: Simplify right side
    1,420,168.74x = 1,584,127,040,933.13
  5. Step 5: Solve for x
    x = 1,584,127,040,933.13/1,420,168.74
  6. Step 6: Final answer
    x = 1,115,449.87

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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.