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Finding the Fourth Proportional to 525,773.32, 725,601.30 and 305,055.83

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Solution

The fourth proportional to 525,773.32, 725,601.30 and 305,055.83 is: 420,996.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,773.32 : 725,601.30 = 305,055.83 : x
  2. Step 2: Convert to fraction form
    525,773.32/725,601.30 = 305,055.83/x
  3. Step 3: Cross multiply
    525,773.32x = 725,601.30 × 305,055.83
  4. Step 4: Simplify right side
    525,773.32x = 221,348,906,820.58
  5. Step 5: Solve for x
    x = 221,348,906,820.58/525,773.32
  6. Step 6: Final answer
    x = 420,996.84

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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.