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Finding the Fourth Proportional to 545,537.53, 752,865.14 and 303,820.10

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Solution

The fourth proportional to 545,537.53, 752,865.14 and 303,820.10 is: 419,284.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,537.53 : 752,865.14 = 303,820.10 : x
  2. Step 2: Convert to fraction form
    545,537.53/752,865.14 = 303,820.10/x
  3. Step 3: Cross multiply
    545,537.53x = 752,865.14 × 303,820.10
  4. Step 4: Simplify right side
    545,537.53x = 228,735,562,121.31
  5. Step 5: Solve for x
    x = 228,735,562,121.31/545,537.53
  6. Step 6: Final answer
    x = 419,284.74

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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.