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Finding the Fourth Proportional to 400,315.91, 601,914.21 and 369,107.76

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Solution

The fourth proportional to 400,315.91, 601,914.21 and 369,107.76 is: 554,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,315.91 : 601,914.21 = 369,107.76 : x
  2. Step 2: Convert to fraction form
    400,315.91/601,914.21 = 369,107.76/x
  3. Step 3: Cross multiply
    400,315.91x = 601,914.21 × 369,107.76
  4. Step 4: Simplify right side
    400,315.91x = 222,171,205,765.27
  5. Step 5: Solve for x
    x = 222,171,205,765.27/400,315.91
  6. Step 6: Final answer
    x = 554,989.70

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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.