Home / 821,322.40-1,133,412.82-458,751.54

Finding the Fourth Proportional to 821,322.40, 1,133,412.82 and 458,751.54

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Solution

The fourth proportional to 821,322.40, 1,133,412.82 and 458,751.54 is: 633,070.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,322.40 : 1,133,412.82 = 458,751.54 : x
  2. Step 2: Convert to fraction form
    821,322.40/1,133,412.82 = 458,751.54/x
  3. Step 3: Cross multiply
    821,322.40x = 1,133,412.82 × 458,751.54
  4. Step 4: Simplify right side
    821,322.40x = 519,954,876,630.74
  5. Step 5: Solve for x
    x = 519,954,876,630.74/821,322.40
  6. Step 6: Final answer
    x = 633,070.37

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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.