Home / 479,139.75-718,831.13-179,621.19

Finding the Fourth Proportional to 479,139.75, 718,831.13 and 179,621.19

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Solution

The fourth proportional to 479,139.75, 718,831.13 and 179,621.19 is: 269,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,139.75 : 718,831.13 = 179,621.19 : x
  2. Step 2: Convert to fraction form
    479,139.75/718,831.13 = 179,621.19/x
  3. Step 3: Cross multiply
    479,139.75x = 718,831.13 × 179,621.19
  4. Step 4: Simplify right side
    479,139.75x = 129,117,302,081.54
  5. Step 5: Solve for x
    x = 129,117,302,081.54/479,139.75
  6. Step 6: Final answer
    x = 269,477.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.