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Finding the Fourth Proportional to 545,485.49, 752,787.09 and 300,488.02

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Solution

The fourth proportional to 545,485.49, 752,787.09 and 300,488.02 is: 414,682.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,485.49 : 752,787.09 = 300,488.02 : x
  2. Step 2: Convert to fraction form
    545,485.49/752,787.09 = 300,488.02/x
  3. Step 3: Cross multiply
    545,485.49x = 752,787.09 × 300,488.02
  4. Step 4: Simplify right side
    545,485.49x = 226,203,500,060.21
  5. Step 5: Solve for x
    x = 226,203,500,060.21/545,485.49
  6. Step 6: Final answer
    x = 414,682.89

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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.