Home / 741,127.21-1,022,642.44-418,719.67

Finding the Fourth Proportional to 741,127.21, 1,022,642.44 and 418,719.67

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Solution

The fourth proportional to 741,127.21, 1,022,642.44 and 418,719.67 is: 577,769.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,127.21 : 1,022,642.44 = 418,719.67 : x
  2. Step 2: Convert to fraction form
    741,127.21/1,022,642.44 = 418,719.67/x
  3. Step 3: Cross multiply
    741,127.21x = 1,022,642.44 × 418,719.67
  4. Step 4: Simplify right side
    741,127.21x = 428,200,499,891.58
  5. Step 5: Solve for x
    x = 428,200,499,891.58/741,127.21
  6. Step 6: Final answer
    x = 577,769.24

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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.