Home / 567,664.10-783,378.09-313,009.70

Finding the Fourth Proportional to 567,664.10, 783,378.09 and 313,009.70

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Solution

The fourth proportional to 567,664.10, 783,378.09 and 313,009.70 is: 431,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,664.10 : 783,378.09 = 313,009.70 : x
  2. Step 2: Convert to fraction form
    567,664.10/783,378.09 = 313,009.70/x
  3. Step 3: Cross multiply
    567,664.10x = 783,378.09 × 313,009.70
  4. Step 4: Simplify right side
    567,664.10x = 245,204,940,937.47
  5. Step 5: Solve for x
    x = 245,204,940,937.47/567,664.10
  6. Step 6: Final answer
    x = 431,954.29

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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.