Home / 1,857,751.20-2,787,145.20-911,152.80

Finding the Fourth Proportional to 1,857,751.20, 2,787,145.20 and 911,152.80

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Solution

The fourth proportional to 1,857,751.20, 2,787,145.20 and 911,152.80 is: 1,366,983.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,751.20 : 2,787,145.20 = 911,152.80 : x
  2. Step 2: Convert to fraction form
    1,857,751.20/2,787,145.20 = 911,152.80/x
  3. Step 3: Cross multiply
    1,857,751.20x = 2,787,145.20 × 911,152.80
  4. Step 4: Simplify right side
    1,857,751.20x = 2,539,515,152,986.56
  5. Step 5: Solve for x
    x = 2,539,515,152,986.56/1,857,751.20
  6. Step 6: Final answer
    x = 1,366,983.45

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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.