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Finding the Fourth Proportional to 553,308.80, 829,963.20 and 541,644.80

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Solution

The fourth proportional to 553,308.80, 829,963.20 and 541,644.80 is: 812,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,308.80 : 829,963.20 = 541,644.80 : x
  2. Step 2: Convert to fraction form
    553,308.80/829,963.20 = 541,644.80/x
  3. Step 3: Cross multiply
    553,308.80x = 829,963.20 × 541,644.80
  4. Step 4: Simplify right side
    553,308.80x = 449,545,251,471.36
  5. Step 5: Solve for x
    x = 449,545,251,471.36/553,308.80
  6. Step 6: Final answer
    x = 812,467.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.