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Finding the Fourth Proportional to 737,433.78, 1,106,150.67 and 421,669.20

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Solution

The fourth proportional to 737,433.78, 1,106,150.67 and 421,669.20 is: 632,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,433.78 : 1,106,150.67 = 421,669.20 : x
  2. Step 2: Convert to fraction form
    737,433.78/1,106,150.67 = 421,669.20/x
  3. Step 3: Cross multiply
    737,433.78x = 1,106,150.67 × 421,669.20
  4. Step 4: Simplify right side
    737,433.78x = 466,429,668,098.36
  5. Step 5: Solve for x
    x = 466,429,668,098.36/737,433.78
  6. Step 6: Final answer
    x = 632,503.80

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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.