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Finding the Fourth Proportional to 561,528.21, 842,685.99 and 324,544.89

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Solution

The fourth proportional to 561,528.21, 842,685.99 and 324,544.89 is: 487,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,528.21 : 842,685.99 = 324,544.89 : x
  2. Step 2: Convert to fraction form
    561,528.21/842,685.99 = 324,544.89/x
  3. Step 3: Cross multiply
    561,528.21x = 842,685.99 × 324,544.89
  4. Step 4: Simplify right side
    561,528.21x = 273,489,431,929.09
  5. Step 5: Solve for x
    x = 273,489,431,929.09/561,528.21
  6. Step 6: Final answer
    x = 487,044.87

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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.