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Finding the Fourth Proportional to 414,007.20, 619,455.60 and 376,682.40

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Solution

The fourth proportional to 414,007.20, 619,455.60 and 376,682.40 is: 563,608.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,007.20 : 619,455.60 = 376,682.40 : x
  2. Step 2: Convert to fraction form
    414,007.20/619,455.60 = 376,682.40/x
  3. Step 3: Cross multiply
    414,007.20x = 619,455.60 × 376,682.40
  4. Step 4: Simplify right side
    414,007.20x = 233,338,022,101.44
  5. Step 5: Solve for x
    x = 233,338,022,101.44/414,007.20
  6. Step 6: Final answer
    x = 563,608.61

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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.