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Finding the Fourth Proportional to 545,563.35, 752,848.12 and 300,540.07

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Solution

The fourth proportional to 545,563.35, 752,848.12 and 300,540.07 is: 414,729.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,563.35 : 752,848.12 = 300,540.07 : x
  2. Step 2: Convert to fraction form
    545,563.35/752,848.12 = 300,540.07/x
  3. Step 3: Cross multiply
    545,563.35x = 752,848.12 × 300,540.07
  4. Step 4: Simplify right side
    545,563.35x = 226,261,028,000.90
  5. Step 5: Solve for x
    x = 226,261,028,000.90/545,563.35
  6. Step 6: Final answer
    x = 414,729.16

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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.