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Finding the Fourth Proportional to 525,772.32, 725,599.92 and 305,054.83

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Solution

The fourth proportional to 525,772.32, 725,599.92 and 305,054.83 is: 420,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,772.32 : 725,599.92 = 305,054.83 : x
  2. Step 2: Convert to fraction form
    525,772.32/725,599.92 = 305,054.83/x
  3. Step 3: Cross multiply
    525,772.32x = 725,599.92 × 305,054.83
  4. Step 4: Simplify right side
    525,772.32x = 221,347,760,243.61
  5. Step 5: Solve for x
    x = 221,347,760,243.61/525,772.32
  6. Step 6: Final answer
    x = 420,995.46

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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.