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Finding the Fourth Proportional to 521,840.76, 782,983.98 and 222,462.33

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Solution

The fourth proportional to 521,840.76, 782,983.98 and 222,462.33 is: 333,788.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,840.76 : 782,983.98 = 222,462.33 : x
  2. Step 2: Convert to fraction form
    521,840.76/782,983.98 = 222,462.33/x
  3. Step 3: Cross multiply
    521,840.76x = 782,983.98 × 222,462.33
  4. Step 4: Simplify right side
    521,840.76x = 174,184,440,543.47
  5. Step 5: Solve for x
    x = 174,184,440,543.47/521,840.76
  6. Step 6: Final answer
    x = 333,788.49

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.