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Finding the Fourth Proportional to 3,164,600.28, 4,747,031.44 and 920,738.28

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Solution

The fourth proportional to 3,164,600.28, 4,747,031.44 and 920,738.28 is: 1,381,145.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164,600.28 : 4,747,031.44 = 920,738.28 : x
  2. Step 2: Convert to fraction form
    3,164,600.28/4,747,031.44 = 920,738.28/x
  3. Step 3: Cross multiply
    3,164,600.28x = 4,747,031.44 × 920,738.28
  4. Step 4: Simplify right side
    3,164,600.28x = 4,370,773,563,171.52
  5. Step 5: Solve for x
    x = 4,370,773,563,171.52/3,164,600.28
  6. Step 6: Final answer
    x = 1,381,145.54

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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.