Home / 1,555,129.78-2,332,344.73-557,857.78

Finding the Fourth Proportional to 1,555,129.78, 2,332,344.73 and 557,857.78

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Solution

The fourth proportional to 1,555,129.78, 2,332,344.73 and 557,857.78 is: 836,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,129.78 : 2,332,344.73 = 557,857.78 : x
  2. Step 2: Convert to fraction form
    1,555,129.78/2,332,344.73 = 557,857.78/x
  3. Step 3: Cross multiply
    1,555,129.78x = 2,332,344.73 × 557,857.78
  4. Step 4: Simplify right side
    1,555,129.78x = 1,301,116,653,272.50
  5. Step 5: Solve for x
    x = 1,301,116,653,272.50/1,555,129.78
  6. Step 6: Final answer
    x = 836,661.14

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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.