Home / 1,291,974.75-1,782,907.74-719,014.77

Finding the Fourth Proportional to 1,291,974.75, 1,782,907.74 and 719,014.77

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Solution

The fourth proportional to 1,291,974.75, 1,782,907.74 and 719,014.77 is: 992,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,974.75 : 1,782,907.74 = 719,014.77 : x
  2. Step 2: Convert to fraction form
    1,291,974.75/1,782,907.74 = 719,014.77/x
  3. Step 3: Cross multiply
    1,291,974.75x = 1,782,907.74 × 719,014.77
  4. Step 4: Simplify right side
    1,291,974.75x = 1,281,936,998,607.32
  5. Step 5: Solve for x
    x = 1,281,936,998,607.32/1,291,974.75
  6. Step 6: Final answer
    x = 992,230.69

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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.