Home / 901,854.78-1,243,960.83-579,972.12

Finding the Fourth Proportional to 901,854.78, 1,243,960.83 and 579,972.12

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Solution

The fourth proportional to 901,854.78, 1,243,960.83 and 579,972.12 is: 799,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,854.78 : 1,243,960.83 = 579,972.12 : x
  2. Step 2: Convert to fraction form
    901,854.78/1,243,960.83 = 579,972.12/x
  3. Step 3: Cross multiply
    901,854.78x = 1,243,960.83 × 579,972.12
  4. Step 4: Simplify right side
    901,854.78x = 721,462,599,772.06
  5. Step 5: Solve for x
    x = 721,462,599,772.06/901,854.78
  6. Step 6: Final answer
    x = 799,976.47

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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.