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Finding the Fourth Proportional to 525.09, 725.62 and 436.48

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Solution

The fourth proportional to 525.09, 725.62 and 436.48 is: 603.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.09 : 725.62 = 436.48 : x
  2. Step 2: Convert to fraction form
    525.09/725.62 = 436.48/x
  3. Step 3: Cross multiply
    525.09x = 725.62 × 436.48
  4. Step 4: Simplify right side
    525.09x = 316,718.62
  5. Step 5: Solve for x
    x = 316,718.62/525.09
  6. Step 6: Final answer
    x = 603.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.