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Finding the Fourth Proportional to 737,744.30, 1,106,616.45 and 485,801.90

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Solution

The fourth proportional to 737,744.30, 1,106,616.45 and 485,801.90 is: 728,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,744.30 : 1,106,616.45 = 485,801.90 : x
  2. Step 2: Convert to fraction form
    737,744.30/1,106,616.45 = 485,801.90/x
  3. Step 3: Cross multiply
    737,744.30x = 1,106,616.45 × 485,801.90
  4. Step 4: Simplify right side
    737,744.30x = 537,596,373,981.26
  5. Step 5: Solve for x
    x = 537,596,373,981.26/737,744.30
  6. Step 6: Final answer
    x = 728,702.85

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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.