Home / 764,208.25-1,054,618.22-420,076.00

Finding the Fourth Proportional to 764,208.25, 1,054,618.22 and 420,076.00

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Solution

The fourth proportional to 764,208.25, 1,054,618.22 and 420,076.00 is: 579,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,208.25 : 1,054,618.22 = 420,076.00 : x
  2. Step 2: Convert to fraction form
    764,208.25/1,054,618.22 = 420,076.00/x
  3. Step 3: Cross multiply
    764,208.25x = 1,054,618.22 × 420,076.00
  4. Step 4: Simplify right side
    764,208.25x = 443,019,799,833.43
  5. Step 5: Solve for x
    x = 443,019,799,833.43/764,208.25
  6. Step 6: Final answer
    x = 579,710.83

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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.