Home / 1,420,145.31-1,959,726.81-808,296.14

Finding the Fourth Proportional to 1,420,145.31, 1,959,726.81 and 808,296.14

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Solution

The fourth proportional to 1,420,145.31, 1,959,726.81 and 808,296.14 is: 1,115,406.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,145.31 : 1,959,726.81 = 808,296.14 : x
  2. Step 2: Convert to fraction form
    1,420,145.31/1,959,726.81 = 808,296.14/x
  3. Step 3: Cross multiply
    1,420,145.31x = 1,959,726.81 × 808,296.14
  4. Step 4: Simplify right side
    1,420,145.31x = 1,584,039,613,849.54
  5. Step 5: Solve for x
    x = 1,584,039,613,849.54/1,420,145.31
  6. Step 6: Final answer
    x = 1,115,406.72

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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.