Home / 668,046.80-1,002,847.80-402,107.60

Finding the Fourth Proportional to 668,046.80, 1,002,847.80 and 402,107.60

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Solution

The fourth proportional to 668,046.80, 1,002,847.80 and 402,107.60 is: 603,629.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,046.80 : 1,002,847.80 = 402,107.60 : x
  2. Step 2: Convert to fraction form
    668,046.80/1,002,847.80 = 402,107.60/x
  3. Step 3: Cross multiply
    668,046.80x = 1,002,847.80 × 402,107.60
  4. Step 4: Simplify right side
    668,046.80x = 403,252,722,023.28
  5. Step 5: Solve for x
    x = 403,252,722,023.28/668,046.80
  6. Step 6: Final answer
    x = 603,629.45

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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.