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Finding the Fourth Proportional to 490,807.80, 735,336.90 and 401,578.20

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Solution

The fourth proportional to 490,807.80, 735,336.90 and 401,578.20 is: 601,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,807.80 : 735,336.90 = 401,578.20 : x
  2. Step 2: Convert to fraction form
    490,807.80/735,336.90 = 401,578.20/x
  3. Step 3: Cross multiply
    490,807.80x = 735,336.90 × 401,578.20
  4. Step 4: Simplify right side
    490,807.80x = 295,295,268,695.58
  5. Step 5: Solve for x
    x = 295,295,268,695.58/490,807.80
  6. Step 6: Final answer
    x = 601,651.54

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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.