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Finding the Fourth Proportional to 545,651.78, 752,960.75 and 300,625.83

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Solution

The fourth proportional to 545,651.78, 752,960.75 and 300,625.83 is: 414,842.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,651.78 : 752,960.75 = 300,625.83 : x
  2. Step 2: Convert to fraction form
    545,651.78/752,960.75 = 300,625.83/x
  3. Step 3: Cross multiply
    545,651.78x = 752,960.75 × 300,625.83
  4. Step 4: Simplify right side
    545,651.78x = 226,359,448,923.04
  5. Step 5: Solve for x
    x = 226,359,448,923.04/545,651.78
  6. Step 6: Final answer
    x = 414,842.32

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1.5x scale

Why These Related Problems?

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