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Finding the Fourth Proportional to 492,813.70, 739,220.55 and 443,047.30

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Solution

The fourth proportional to 492,813.70, 739,220.55 and 443,047.30 is: 664,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,813.70 : 739,220.55 = 443,047.30 : x
  2. Step 2: Convert to fraction form
    492,813.70/739,220.55 = 443,047.30/x
  3. Step 3: Cross multiply
    492,813.70x = 739,220.55 × 443,047.30
  4. Step 4: Simplify right side
    492,813.70x = 327,509,668,782.02
  5. Step 5: Solve for x
    x = 327,509,668,782.02/492,813.70
  6. Step 6: Final answer
    x = 664,570.95

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Similar ratio
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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.