Home / 778,993.20-1,168,518.96-218,013.12

Finding the Fourth Proportional to 778,993.20, 1,168,518.96 and 218,013.12

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Solution

The fourth proportional to 778,993.20, 1,168,518.96 and 218,013.12 is: 327,027.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,993.20 : 1,168,518.96 = 218,013.12 : x
  2. Step 2: Convert to fraction form
    778,993.20/1,168,518.96 = 218,013.12/x
  3. Step 3: Cross multiply
    778,993.20x = 1,168,518.96 × 218,013.12
  4. Step 4: Simplify right side
    778,993.20x = 254,752,464,248.76
  5. Step 5: Solve for x
    x = 254,752,464,248.76/778,993.20
  6. Step 6: Final answer
    x = 327,027.84

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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.