Home / 1,941,009.68-2,911,786.68-678,550.16

Finding the Fourth Proportional to 1,941,009.68, 2,911,786.68 and 678,550.16

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Solution

The fourth proportional to 1,941,009.68, 2,911,786.68 and 678,550.16 is: 1,017,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,009.68 : 2,911,786.68 = 678,550.16 : x
  2. Step 2: Convert to fraction form
    1,941,009.68/2,911,786.68 = 678,550.16/x
  3. Step 3: Cross multiply
    1,941,009.68x = 2,911,786.68 × 678,550.16
  4. Step 4: Simplify right side
    1,941,009.68x = 1,975,793,317,599.87
  5. Step 5: Solve for x
    x = 1,975,793,317,599.87/1,941,009.68
  6. Step 6: Final answer
    x = 1,017,920.38

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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.