Home / 1,070,756.78-1,603,993.80-644,057

Finding the Fourth Proportional to 1,070,756.78, 1,603,993.80 and 644,057

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Solution

The fourth proportional to 1,070,756.78, 1,603,993.80 and 644,057 is: 964,797.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,756.78 : 1,603,993.80 = 644,057 : x
  2. Step 2: Convert to fraction form
    1,070,756.78/1,603,993.80 = 644,057/x
  3. Step 3: Cross multiply
    1,070,756.78x = 1,603,993.80 × 644,057
  4. Step 4: Simplify right side
    1,070,756.78x = 1,033,063,434,846.60
  5. Step 5: Solve for x
    x = 1,033,063,434,846.60/1,070,756.78
  6. Step 6: Final answer
    x = 964,797.47

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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.