Home / 2,257,455.66-3,115,127.07-1,290,626.70

Finding the Fourth Proportional to 2,257,455.66, 3,115,127.07 and 1,290,626.70

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Solution

The fourth proportional to 2,257,455.66, 3,115,127.07 and 1,290,626.70 is: 1,780,972.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257,455.66 : 3,115,127.07 = 1,290,626.70 : x
  2. Step 2: Convert to fraction form
    2,257,455.66/3,115,127.07 = 1,290,626.70/x
  3. Step 3: Cross multiply
    2,257,455.66x = 3,115,127.07 × 1,290,626.70
  4. Step 4: Simplify right side
    2,257,455.66x = 4,020,466,170,434.77
  5. Step 5: Solve for x
    x = 4,020,466,170,434.77/2,257,455.66
  6. Step 6: Final answer
    x = 1,780,972.38

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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.