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Finding the Fourth Proportional to 552,669.70, 829,004.55 and 272,128.90

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Solution

The fourth proportional to 552,669.70, 829,004.55 and 272,128.90 is: 408,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,669.70 : 829,004.55 = 272,128.90 : x
  2. Step 2: Convert to fraction form
    552,669.70/829,004.55 = 272,128.90/x
  3. Step 3: Cross multiply
    552,669.70x = 829,004.55 × 272,128.90
  4. Step 4: Simplify right side
    552,669.70x = 225,596,096,286.50
  5. Step 5: Solve for x
    x = 225,596,096,286.50/552,669.70
  6. Step 6: Final answer
    x = 408,193.35

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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.