Home / 1,285,392.40-1,926,245.40-945,782.80

Finding the Fourth Proportional to 1,285,392.40, 1,926,245.40 and 945,782.80

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Solution

The fourth proportional to 1,285,392.40, 1,926,245.40 and 945,782.80 is: 1,417,317.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,392.40 : 1,926,245.40 = 945,782.80 : x
  2. Step 2: Convert to fraction form
    1,285,392.40/1,926,245.40 = 945,782.80/x
  3. Step 3: Cross multiply
    1,285,392.40x = 1,926,245.40 × 945,782.80
  4. Step 4: Simplify right side
    1,285,392.40x = 1,821,809,767,899.12
  5. Step 5: Solve for x
    x = 1,821,809,767,899.12/1,285,392.40
  6. Step 6: Final answer
    x = 1,417,317.99

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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.