Home / 778,831.40-1,168,160.70-217,922.60

Finding the Fourth Proportional to 778,831.40, 1,168,160.70 and 217,922.60

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Solution

The fourth proportional to 778,831.40, 1,168,160.70 and 217,922.60 is: 326,859.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,831.40 : 1,168,160.70 = 217,922.60 : x
  2. Step 2: Convert to fraction form
    778,831.40/1,168,160.70 = 217,922.60/x
  3. Step 3: Cross multiply
    778,831.40x = 1,168,160.70 × 217,922.60
  4. Step 4: Simplify right side
    778,831.40x = 254,568,616,961.82
  5. Step 5: Solve for x
    x = 254,568,616,961.82/778,831.40
  6. Step 6: Final answer
    x = 326,859.72

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1.5x scale

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.