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Finding the Fourth Proportional to 547,733.86, 755,858.77 and 306,018.25

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Solution

The fourth proportional to 547,733.86, 755,858.77 and 306,018.25 is: 422,297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,733.86 : 755,858.77 = 306,018.25 : x
  2. Step 2: Convert to fraction form
    547,733.86/755,858.77 = 306,018.25/x
  3. Step 3: Cross multiply
    547,733.86x = 755,858.77 × 306,018.25
  4. Step 4: Simplify right side
    547,733.86x = 231,306,574,263.26
  5. Step 5: Solve for x
    x = 231,306,574,263.26/547,733.86
  6. Step 6: Final answer
    x = 422,297.38

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Double scale
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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.