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Finding the Fourth Proportional to 567,999.91, 783,839.82 and 313,351.09

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Solution

The fourth proportional to 567,999.91, 783,839.82 and 313,351.09 is: 432,424.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,999.91 : 783,839.82 = 313,351.09 : x
  2. Step 2: Convert to fraction form
    567,999.91/783,839.82 = 313,351.09/x
  3. Step 3: Cross multiply
    567,999.91x = 783,839.82 × 313,351.09
  4. Step 4: Simplify right side
    567,999.91x = 245,617,061,982.40
  5. Step 5: Solve for x
    x = 245,617,061,982.40/567,999.91
  6. Step 6: Final answer
    x = 432,424.47

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1.5x scale

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.