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Finding the Fourth Proportional to 545,048.78, 752,161.46 and 303,327.27

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Solution

The fourth proportional to 545,048.78, 752,161.46 and 303,327.27 is: 418,588.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,048.78 : 752,161.46 = 303,327.27 : x
  2. Step 2: Convert to fraction form
    545,048.78/752,161.46 = 303,327.27/x
  3. Step 3: Cross multiply
    545,048.78x = 752,161.46 × 303,327.27
  4. Step 4: Simplify right side
    545,048.78x = 228,151,080,744.38
  5. Step 5: Solve for x
    x = 228,151,080,744.38/545,048.78
  6. Step 6: Final answer
    x = 418,588.37

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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.