Home / 2,639,643.82-3,642,708.47-1,432,419.82

Finding the Fourth Proportional to 2,639,643.82, 3,642,708.47 and 1,432,419.82

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Solution

The fourth proportional to 2,639,643.82, 3,642,708.47 and 1,432,419.82 is: 1,976,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,643.82 : 3,642,708.47 = 1,432,419.82 : x
  2. Step 2: Convert to fraction form
    2,639,643.82/3,642,708.47 = 1,432,419.82/x
  3. Step 3: Cross multiply
    2,639,643.82x = 3,642,708.47 × 1,432,419.82
  4. Step 4: Simplify right side
    2,639,643.82x = 5,217,887,814,957.90
  5. Step 5: Solve for x
    x = 5,217,887,814,957.90/2,639,643.82
  6. Step 6: Final answer
    x = 1,976,739.35

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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.