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Finding the Fourth Proportional to 568,103.92, 783,999.82 and 313,471.51

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Solution

The fourth proportional to 568,103.92, 783,999.82 and 313,471.51 is: 432,599.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,103.92 : 783,999.82 = 313,471.51 : x
  2. Step 2: Convert to fraction form
    568,103.92/783,999.82 = 313,471.51/x
  3. Step 3: Cross multiply
    568,103.92x = 783,999.82 × 313,471.51
  4. Step 4: Simplify right side
    568,103.92x = 245,761,607,415.13
  5. Step 5: Solve for x
    x = 245,761,607,415.13/568,103.92
  6. Step 6: Final answer
    x = 432,599.74

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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.