Home / 1,990,137.78-2,746,359.66-1,118,973.24

Finding the Fourth Proportional to 1,990,137.78, 2,746,359.66 and 1,118,973.24

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Solution

The fourth proportional to 1,990,137.78, 2,746,359.66 and 1,118,973.24 is: 1,544,165.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,137.78 : 2,746,359.66 = 1,118,973.24 : x
  2. Step 2: Convert to fraction form
    1,990,137.78/2,746,359.66 = 1,118,973.24/x
  3. Step 3: Cross multiply
    1,990,137.78x = 2,746,359.66 × 1,118,973.24
  4. Step 4: Simplify right side
    1,990,137.78x = 3,073,102,966,955.50
  5. Step 5: Solve for x
    x = 3,073,102,966,955.50/1,990,137.78
  6. Step 6: Final answer
    x = 1,544,165.94

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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.