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Finding the Fourth Proportional to 489,633.60, 734,450.40 and 264,907.20

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Solution

The fourth proportional to 489,633.60, 734,450.40 and 264,907.20 is: 397,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,633.60 : 734,450.40 = 264,907.20 : x
  2. Step 2: Convert to fraction form
    489,633.60/734,450.40 = 264,907.20/x
  3. Step 3: Cross multiply
    489,633.60x = 734,450.40 × 264,907.20
  4. Step 4: Simplify right side
    489,633.60x = 194,561,199,002.88
  5. Step 5: Solve for x
    x = 194,561,199,002.88/489,633.60
  6. Step 6: Final answer
    x = 397,360.80

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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.