Home / 957,208.54-1,320,930.80-521,629.77

Finding the Fourth Proportional to 957,208.54, 1,320,930.80 and 521,629.77

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Solution

The fourth proportional to 957,208.54, 1,320,930.80 and 521,629.77 is: 719,839.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,208.54 : 1,320,930.80 = 521,629.77 : x
  2. Step 2: Convert to fraction form
    957,208.54/1,320,930.80 = 521,629.77/x
  3. Step 3: Cross multiply
    957,208.54x = 1,320,930.80 × 521,629.77
  4. Step 4: Simplify right side
    957,208.54x = 689,036,836,625.54
  5. Step 5: Solve for x
    x = 689,036,836,625.54/957,208.54
  6. Step 6: Final answer
    x = 719,839.83

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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.