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Finding the Fourth Proportional to 400,317.91, 601,917.21 and 369,109.76

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Solution

The fourth proportional to 400,317.91, 601,917.21 and 369,109.76 is: 554,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,317.91 : 601,917.21 = 369,109.76 : x
  2. Step 2: Convert to fraction form
    400,317.91/601,917.21 = 369,109.76/x
  3. Step 3: Cross multiply
    400,317.91x = 601,917.21 × 369,109.76
  4. Step 4: Simplify right side
    400,317.91x = 222,173,516,922.97
  5. Step 5: Solve for x
    x = 222,173,516,922.97/400,317.91
  6. Step 6: Final answer
    x = 554,992.70

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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.