Home / 778,460.86-1,166,988.57-279,708.22

Finding the Fourth Proportional to 778,460.86, 1,166,988.57 and 279,708.22

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Solution

The fourth proportional to 778,460.86, 1,166,988.57 and 279,708.22 is: 419,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,460.86 : 1,166,988.57 = 279,708.22 : x
  2. Step 2: Convert to fraction form
    778,460.86/1,166,988.57 = 279,708.22/x
  3. Step 3: Cross multiply
    778,460.86x = 1,166,988.57 × 279,708.22
  4. Step 4: Simplify right side
    778,460.86x = 326,416,295,675.05
  5. Step 5: Solve for x
    x = 326,416,295,675.05/778,460.86
  6. Step 6: Final answer
    x = 419,309.84

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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.