Home / 723,738.45-998,739.78-417,804.48

Finding the Fourth Proportional to 723,738.45, 998,739.78 and 417,804.48

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Solution

The fourth proportional to 723,738.45, 998,739.78 and 417,804.48 is: 576,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,738.45 : 998,739.78 = 417,804.48 : x
  2. Step 2: Convert to fraction form
    723,738.45/998,739.78 = 417,804.48/x
  3. Step 3: Cross multiply
    723,738.45x = 998,739.78 × 417,804.48
  4. Step 4: Simplify right side
    723,738.45x = 417,277,954,438.21
  5. Step 5: Solve for x
    x = 417,277,954,438.21/723,738.45
  6. Step 6: Final answer
    x = 576,559.05

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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.