Home / 778,981.60-1,168,357.20-218,072.80

Finding the Fourth Proportional to 778,981.60, 1,168,357.20 and 218,072.80

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Solution

The fourth proportional to 778,981.60, 1,168,357.20 and 218,072.80 is: 327,076.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,981.60 : 1,168,357.20 = 218,072.80 : x
  2. Step 2: Convert to fraction form
    778,981.60/1,168,357.20 = 218,072.80/x
  3. Step 3: Cross multiply
    778,981.60x = 1,168,357.20 × 218,072.80
  4. Step 4: Simplify right side
    778,981.60x = 254,786,926,004.16
  5. Step 5: Solve for x
    x = 254,786,926,004.16/778,981.60
  6. Step 6: Final answer
    x = 327,076.95

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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.