Home / 764,042.11-1,054,384.37-477,728.17

Finding the Fourth Proportional to 764,042.11, 1,054,384.37 and 477,728.17

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Solution

The fourth proportional to 764,042.11, 1,054,384.37 and 477,728.17 is: 659,268.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,042.11 : 1,054,384.37 = 477,728.17 : x
  2. Step 2: Convert to fraction form
    764,042.11/1,054,384.37 = 477,728.17/x
  3. Step 3: Cross multiply
    764,042.11x = 1,054,384.37 × 477,728.17
  4. Step 4: Simplify right side
    764,042.11x = 503,709,115,556.70
  5. Step 5: Solve for x
    x = 503,709,115,556.70/764,042.11
  6. Step 6: Final answer
    x = 659,268.79

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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.