Home / 1,989,868.15-2,746,115.39-1,118,976.94

Finding the Fourth Proportional to 1,989,868.15, 2,746,115.39 and 1,118,976.94

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Solution

The fourth proportional to 1,989,868.15, 2,746,115.39 and 1,118,976.94 is: 1,544,242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,868.15 : 2,746,115.39 = 1,118,976.94 : x
  2. Step 2: Convert to fraction form
    1,989,868.15/2,746,115.39 = 1,118,976.94/x
  3. Step 3: Cross multiply
    1,989,868.15x = 2,746,115.39 × 1,118,976.94
  4. Step 4: Simplify right side
    1,989,868.15x = 3,072,839,776,663.65
  5. Step 5: Solve for x
    x = 3,072,839,776,663.65/1,989,868.15
  6. Step 6: Final answer
    x = 1,544,242.91

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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.