Home / 821,316.42-1,133,393.22-458,729.64

Finding the Fourth Proportional to 821,316.42, 1,133,393.22 and 458,729.64

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Solution

The fourth proportional to 821,316.42, 1,133,393.22 and 458,729.64 is: 633,033.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,316.42 : 1,133,393.22 = 458,729.64 : x
  2. Step 2: Convert to fraction form
    821,316.42/1,133,393.22 = 458,729.64/x
  3. Step 3: Cross multiply
    821,316.42x = 1,133,393.22 × 458,729.64
  4. Step 4: Simplify right side
    821,316.42x = 519,921,063,789.04
  5. Step 5: Solve for x
    x = 519,921,063,789.04/821,316.42
  6. Step 6: Final answer
    x = 633,033.81

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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.