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Finding the Fourth Proportional to 540,822.53, 810,661.75 and 203,717.32

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Solution

The fourth proportional to 540,822.53, 810,661.75 and 203,717.32 is: 305,360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,822.53 : 810,661.75 = 203,717.32 : x
  2. Step 2: Convert to fraction form
    540,822.53/810,661.75 = 203,717.32/x
  3. Step 3: Cross multiply
    540,822.53x = 810,661.75 × 203,717.32
  4. Step 4: Simplify right side
    540,822.53x = 165,145,836,600.56
  5. Step 5: Solve for x
    x = 165,145,836,600.56/540,822.53
  6. Step 6: Final answer
    x = 305,360.50

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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.