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Finding the Fourth Proportional to 821,324.64, 1,133,416.04 and 458,753.64

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Solution

The fourth proportional to 821,324.64, 1,133,416.04 and 458,753.64 is: 633,073.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,324.64 : 1,133,416.04 = 458,753.64 : x
  2. Step 2: Convert to fraction form
    821,324.64/1,133,416.04 = 458,753.64/x
  3. Step 3: Cross multiply
    821,324.64x = 1,133,416.04 × 458,753.64
  4. Step 4: Simplify right side
    821,324.64x = 519,958,733,984.39
  5. Step 5: Solve for x
    x = 519,958,733,984.39/821,324.64
  6. Step 6: Final answer
    x = 633,073.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.