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Finding the Fourth Proportional to 488,464.40, 734,446.20 and 477,966.80

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Solution

The fourth proportional to 488,464.40, 734,446.20 and 477,966.80 is: 718,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,464.40 : 734,446.20 = 477,966.80 : x
  2. Step 2: Convert to fraction form
    488,464.40/734,446.20 = 477,966.80/x
  3. Step 3: Cross multiply
    488,464.40x = 734,446.20 × 477,966.80
  4. Step 4: Simplify right side
    488,464.40x = 351,040,899,986.16
  5. Step 5: Solve for x
    x = 351,040,899,986.16/488,464.40
  6. Step 6: Final answer
    x = 718,662.20

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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.