Home / 2,257,451.16-3,115,120.86-1,290,622.20

Finding the Fourth Proportional to 2,257,451.16, 3,115,120.86 and 1,290,622.20

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Solution

The fourth proportional to 2,257,451.16, 3,115,120.86 and 1,290,622.20 is: 1,780,966.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257,451.16 : 3,115,120.86 = 1,290,622.20 : x
  2. Step 2: Convert to fraction form
    2,257,451.16/3,115,120.86 = 1,290,622.20/x
  3. Step 3: Cross multiply
    2,257,451.16x = 3,115,120.86 × 1,290,622.20
  4. Step 4: Simplify right side
    2,257,451.16x = 4,020,444,137,599.09
  5. Step 5: Solve for x
    x = 4,020,444,137,599.09/2,257,451.16
  6. Step 6: Final answer
    x = 1,780,966.17

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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.