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Finding the Fourth Proportional to 545,962.56, 818,748 and 209,097.92

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Solution

The fourth proportional to 545,962.56, 818,748 and 209,097.92 is: 313,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,962.56 : 818,748 = 209,097.92 : x
  2. Step 2: Convert to fraction form
    545,962.56/818,748 = 209,097.92/x
  3. Step 3: Cross multiply
    545,962.56x = 818,748 × 209,097.92
  4. Step 4: Simplify right side
    545,962.56x = 171,198,503,804.16
  5. Step 5: Solve for x
    x = 171,198,503,804.16/545,962.56
  6. Step 6: Final answer
    x = 313,571.88

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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.