Home / 2,485,479.87-3,429,929.43-1,397,751.12

Finding the Fourth Proportional to 2,485,479.87, 3,429,929.43 and 1,397,751.12

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Solution

The fourth proportional to 2,485,479.87, 3,429,929.43 and 1,397,751.12 is: 1,928,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485,479.87 : 3,429,929.43 = 1,397,751.12 : x
  2. Step 2: Convert to fraction form
    2,485,479.87/3,429,929.43 = 1,397,751.12/x
  3. Step 3: Cross multiply
    2,485,479.87x = 3,429,929.43 × 1,397,751.12
  4. Step 4: Simplify right side
    2,485,479.87x = 4,794,187,702,303.46
  5. Step 5: Solve for x
    x = 4,794,187,702,303.46/2,485,479.87
  6. Step 6: Final answer
    x = 1,928,878.11

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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.