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Finding the Fourth Proportional to 545,414.08, 752,669.54 and 303,699.56

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Solution

The fourth proportional to 545,414.08, 752,669.54 and 303,699.56 is: 419,104.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,414.08 : 752,669.54 = 303,699.56 : x
  2. Step 2: Convert to fraction form
    545,414.08/752,669.54 = 303,699.56/x
  3. Step 3: Cross multiply
    545,414.08x = 752,669.54 × 303,699.56
  4. Step 4: Simplify right side
    545,414.08x = 228,585,408,123.40
  5. Step 5: Solve for x
    x = 228,585,408,123.40/545,414.08
  6. Step 6: Final answer
    x = 419,104.34

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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.