Home / 1,238,151.66-1,708,667.10-721,891.14

Finding the Fourth Proportional to 1,238,151.66, 1,708,667.10 and 721,891.14

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Solution

The fourth proportional to 1,238,151.66, 1,708,667.10 and 721,891.14 is: 996,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,151.66 : 1,708,667.10 = 721,891.14 : x
  2. Step 2: Convert to fraction form
    1,238,151.66/1,708,667.10 = 721,891.14/x
  3. Step 3: Cross multiply
    1,238,151.66x = 1,708,667.10 × 721,891.14
  4. Step 4: Simplify right side
    1,238,151.66x = 1,233,471,640,699.49
  5. Step 5: Solve for x
    x = 1,233,471,640,699.49/1,238,151.66
  6. Step 6: Final answer
    x = 996,220.16

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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.