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Finding the Fourth Proportional to 545,059.80, 817,589.70 and 335,107.80

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Solution

The fourth proportional to 545,059.80, 817,589.70 and 335,107.80 is: 502,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,059.80 : 817,589.70 = 335,107.80 : x
  2. Step 2: Convert to fraction form
    545,059.80/817,589.70 = 335,107.80/x
  3. Step 3: Cross multiply
    545,059.80x = 817,589.70 × 335,107.80
  4. Step 4: Simplify right side
    545,059.80x = 273,980,685,669.66
  5. Step 5: Solve for x
    x = 273,980,685,669.66/545,059.80
  6. Step 6: Final answer
    x = 502,661.70

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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.