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Finding the Fourth Proportional to 446,812.80, 670,219.20 and 443,702.40

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Solution

The fourth proportional to 446,812.80, 670,219.20 and 443,702.40 is: 665,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,812.80 : 670,219.20 = 443,702.40 : x
  2. Step 2: Convert to fraction form
    446,812.80/670,219.20 = 443,702.40/x
  3. Step 3: Cross multiply
    446,812.80x = 670,219.20 × 443,702.40
  4. Step 4: Simplify right side
    446,812.80x = 297,377,867,566.08
  5. Step 5: Solve for x
    x = 297,377,867,566.08/446,812.80
  6. Step 6: Final answer
    x = 665,553.60

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Similar ratio
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1.5x scale

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.