Home / 1,081,164.66-1,491,759.21-645,497.10

Finding the Fourth Proportional to 1,081,164.66, 1,491,759.21 and 645,497.10

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Solution

The fourth proportional to 1,081,164.66, 1,491,759.21 and 645,497.10 is: 890,637.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,164.66 : 1,491,759.21 = 645,497.10 : x
  2. Step 2: Convert to fraction form
    1,081,164.66/1,491,759.21 = 645,497.10/x
  3. Step 3: Cross multiply
    1,081,164.66x = 1,491,759.21 × 645,497.10
  4. Step 4: Simplify right side
    1,081,164.66x = 962,926,243,953.29
  5. Step 5: Solve for x
    x = 962,926,243,953.29/1,081,164.66
  6. Step 6: Final answer
    x = 890,637.92

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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.