Home / 1,238,147.66-1,708,661.58-721,887.14

Finding the Fourth Proportional to 1,238,147.66, 1,708,661.58 and 721,887.14

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Solution

The fourth proportional to 1,238,147.66, 1,708,661.58 and 721,887.14 is: 996,214.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,147.66 : 1,708,661.58 = 721,887.14 : x
  2. Step 2: Convert to fraction form
    1,238,147.66/1,708,661.58 = 721,887.14/x
  3. Step 3: Cross multiply
    1,238,147.66x = 1,708,661.58 × 721,887.14
  4. Step 4: Simplify right side
    1,238,147.66x = 1,233,460,821,214.08
  5. Step 5: Solve for x
    x = 1,233,460,821,214.08/1,238,147.66
  6. Step 6: Final answer
    x = 996,214.64

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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.