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Finding the Fourth Proportional to 324,429.86, 444,461.48 and 312,300.56

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Solution

The fourth proportional to 324,429.86, 444,461.48 and 312,300.56 is: 427,844.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,429.86 : 444,461.48 = 312,300.56 : x
  2. Step 2: Convert to fraction form
    324,429.86/444,461.48 = 312,300.56/x
  3. Step 3: Cross multiply
    324,429.86x = 444,461.48 × 312,300.56
  4. Step 4: Simplify right side
    324,429.86x = 138,805,569,102.43
  5. Step 5: Solve for x
    x = 138,805,569,102.43/324,429.86
  6. Step 6: Final answer
    x = 427,844.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.