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Finding the Fourth Proportional to 545,537.32, 752,864.85 and 303,819.89

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Solution

The fourth proportional to 545,537.32, 752,864.85 and 303,819.89 is: 419,284.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,537.32 : 752,864.85 = 303,819.89 : x
  2. Step 2: Convert to fraction form
    545,537.32/752,864.85 = 303,819.89/x
  3. Step 3: Cross multiply
    545,537.32x = 752,864.85 × 303,819.89
  4. Step 4: Simplify right side
    545,537.32x = 228,735,312,147.54
  5. Step 5: Solve for x
    x = 228,735,312,147.54/545,537.32
  6. Step 6: Final answer
    x = 419,284.45

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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.