Home / 1,090,516.68-1,631,218.78-766,282.06

Finding the Fourth Proportional to 1,090,516.68, 1,631,218.78 and 766,282.06

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Solution

The fourth proportional to 1,090,516.68, 1,631,218.78 and 766,282.06 is: 1,146,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,516.68 : 1,631,218.78 = 766,282.06 : x
  2. Step 2: Convert to fraction form
    1,090,516.68/1,631,218.78 = 766,282.06/x
  3. Step 3: Cross multiply
    1,090,516.68x = 1,631,218.78 × 766,282.06
  4. Step 4: Simplify right side
    1,090,516.68x = 1,249,973,687,049.09
  5. Step 5: Solve for x
    x = 1,249,973,687,049.09/1,090,516.68
  6. Step 6: Final answer
    x = 1,146,221.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.