Home / 2,918,778.80-4,378,168.20-788,802.80

Finding the Fourth Proportional to 2,918,778.80, 4,378,168.20 and 788,802.80

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Solution

The fourth proportional to 2,918,778.80, 4,378,168.20 and 788,802.80 is: 1,183,204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,778.80 : 4,378,168.20 = 788,802.80 : x
  2. Step 2: Convert to fraction form
    2,918,778.80/4,378,168.20 = 788,802.80/x
  3. Step 3: Cross multiply
    2,918,778.80x = 4,378,168.20 × 788,802.80
  4. Step 4: Simplify right side
    2,918,778.80x = 3,453,511,335,030.96
  5. Step 5: Solve for x
    x = 3,453,511,335,030.96/2,918,778.80
  6. Step 6: Final answer
    x = 1,183,204.20

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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.