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Finding the Fourth Proportional to 488,466.40, 734,449.20 and 477,968.80

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Solution

The fourth proportional to 488,466.40, 734,449.20 and 477,968.80 is: 718,665.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,466.40 : 734,449.20 = 477,968.80 : x
  2. Step 2: Convert to fraction form
    488,466.40/734,449.20 = 477,968.80/x
  3. Step 3: Cross multiply
    488,466.40x = 734,449.20 × 477,968.80
  4. Step 4: Simplify right side
    488,466.40x = 351,043,802,784.96
  5. Step 5: Solve for x
    x = 351,043,802,784.96/488,466.40
  6. Step 6: Final answer
    x = 718,665.20

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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.