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Finding the Fourth Proportional to 545,383.13, 752,613.53 and 303,665.56

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Solution

The fourth proportional to 545,383.13, 752,613.53 and 303,665.56 is: 419,050.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,383.13 : 752,613.53 = 303,665.56 : x
  2. Step 2: Convert to fraction form
    545,383.13/752,613.53 = 303,665.56/x
  3. Step 3: Cross multiply
    545,383.13x = 752,613.53 × 303,665.56
  4. Step 4: Simplify right side
    545,383.13x = 228,542,805,651.17
  5. Step 5: Solve for x
    x = 228,542,805,651.17/545,383.13
  6. Step 6: Final answer
    x = 419,050.01

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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.