Home / 3,418,922.80-5,128,384.20-1,922,820.40

Finding the Fourth Proportional to 3,418,922.80, 5,128,384.20 and 1,922,820.40

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Solution

The fourth proportional to 3,418,922.80, 5,128,384.20 and 1,922,820.40 is: 2,884,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418,922.80 : 5,128,384.20 = 1,922,820.40 : x
  2. Step 2: Convert to fraction form
    3,418,922.80/5,128,384.20 = 1,922,820.40/x
  3. Step 3: Cross multiply
    3,418,922.80x = 5,128,384.20 × 1,922,820.40
  4. Step 4: Simplify right side
    3,418,922.80x = 9,860,961,758,797.68
  5. Step 5: Solve for x
    x = 9,860,961,758,797.68/3,418,922.80
  6. Step 6: Final answer
    x = 2,884,230.60

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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.