Home / 821,287.35-1,133,364.56-458,716.37

Finding the Fourth Proportional to 821,287.35, 1,133,364.56 and 458,716.37

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Solution

The fourth proportional to 821,287.35, 1,133,364.56 and 458,716.37 is: 633,021.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,287.35 : 1,133,364.56 = 458,716.37 : x
  2. Step 2: Convert to fraction form
    821,287.35/1,133,364.56 = 458,716.37/x
  3. Step 3: Cross multiply
    821,287.35x = 1,133,364.56 × 458,716.37
  4. Step 4: Simplify right side
    821,287.35x = 519,892,868,889.44
  5. Step 5: Solve for x
    x = 519,892,868,889.44/821,287.35
  6. Step 6: Final answer
    x = 633,021.89

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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.