Home / 764,351.73-1,054,825.70-415,515.60

Finding the Fourth Proportional to 764,351.73, 1,054,825.70 and 415,515.60

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Solution

The fourth proportional to 764,351.73, 1,054,825.70 and 415,515.60 is: 573,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,351.73 : 1,054,825.70 = 415,515.60 : x
  2. Step 2: Convert to fraction form
    764,351.73/1,054,825.70 = 415,515.60/x
  3. Step 3: Cross multiply
    764,351.73x = 1,054,825.70 × 415,515.60
  4. Step 4: Simplify right side
    764,351.73x = 438,296,531,553.34
  5. Step 5: Solve for x
    x = 438,296,531,553.34/764,351.73
  6. Step 6: Final answer
    x = 573,422.57

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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.