Home / 1,440,180.77-1,987,509.84-828,333.68

Finding the Fourth Proportional to 1,440,180.77, 1,987,509.84 and 828,333.68

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Solution

The fourth proportional to 1,440,180.77, 1,987,509.84 and 828,333.68 is: 1,143,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,180.77 : 1,987,509.84 = 828,333.68 : x
  2. Step 2: Convert to fraction form
    1,440,180.77/1,987,509.84 = 828,333.68/x
  3. Step 3: Cross multiply
    1,440,180.77x = 1,987,509.84 × 828,333.68
  4. Step 4: Simplify right side
    1,440,180.77x = 1,646,321,339,803.41
  5. Step 5: Solve for x
    x = 1,646,321,339,803.41/1,440,180.77
  6. Step 6: Final answer
    x = 1,143,135.21

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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.