Home / 1,361,382.78-2,042,085.84-388,744.55

Finding the Fourth Proportional to 1,361,382.78, 2,042,085.84 and 388,744.55

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Solution

The fourth proportional to 1,361,382.78, 2,042,085.84 and 388,744.55 is: 583,120.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,382.78 : 2,042,085.84 = 388,744.55 : x
  2. Step 2: Convert to fraction form
    1,361,382.78/2,042,085.84 = 388,744.55/x
  3. Step 3: Cross multiply
    1,361,382.78x = 2,042,085.84 × 388,744.55
  4. Step 4: Simplify right side
    1,361,382.78x = 793,849,730,721.74
  5. Step 5: Solve for x
    x = 793,849,730,721.74/1,361,382.78
  6. Step 6: Final answer
    x = 583,120.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.