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Finding the Fourth Proportional to 545,116.80, 817,713.60 and 308,572.80

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Solution

The fourth proportional to 545,116.80, 817,713.60 and 308,572.80 is: 462,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,116.80 : 817,713.60 = 308,572.80 : x
  2. Step 2: Convert to fraction form
    545,116.80/817,713.60 = 308,572.80/x
  3. Step 3: Cross multiply
    545,116.80x = 817,713.60 × 308,572.80
  4. Step 4: Simplify right side
    545,116.80x = 252,324,175,150.08
  5. Step 5: Solve for x
    x = 252,324,175,150.08/545,116.80
  6. Step 6: Final answer
    x = 462,880.94

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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.