Home / 3,124,808-4,312,695.20-1,978,994.88

Finding the Fourth Proportional to 3,124,808, 4,312,695.20 and 1,978,994.88

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Solution

The fourth proportional to 3,124,808, 4,312,695.20 and 1,978,994.88 is: 2,731,304.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124,808 : 4,312,695.20 = 1,978,994.88 : x
  2. Step 2: Convert to fraction form
    3,124,808/4,312,695.20 = 1,978,994.88/x
  3. Step 3: Cross multiply
    3,124,808x = 4,312,695.20 × 1,978,994.88
  4. Step 4: Simplify right side
    3,124,808x = 8,534,801,719,800.58
  5. Step 5: Solve for x
    x = 8,534,801,719,800.58/3,124,808
  6. Step 6: Final answer
    x = 2,731,304.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.