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Finding the Fourth Proportional to 545,072.54, 752,235.36 and 303,354.32

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Solution

The fourth proportional to 545,072.54, 752,235.36 and 303,354.32 is: 418,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,072.54 : 752,235.36 = 303,354.32 : x
  2. Step 2: Convert to fraction form
    545,072.54/752,235.36 = 303,354.32/x
  3. Step 3: Cross multiply
    545,072.54x = 752,235.36 × 303,354.32
  4. Step 4: Simplify right side
    545,072.54x = 228,193,846,112.76
  5. Step 5: Solve for x
    x = 228,193,846,112.76/545,072.54
  6. Step 6: Final answer
    x = 418,648.58

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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.