Home / 1,382,137.40-1,907,272.50-761,922.56

Finding the Fourth Proportional to 1,382,137.40, 1,907,272.50 and 761,922.56

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Solution

The fourth proportional to 1,382,137.40, 1,907,272.50 and 761,922.56 is: 1,051,410.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,137.40 : 1,907,272.50 = 761,922.56 : x
  2. Step 2: Convert to fraction form
    1,382,137.40/1,907,272.50 = 761,922.56/x
  3. Step 3: Cross multiply
    1,382,137.40x = 1,907,272.50 × 761,922.56
  4. Step 4: Simplify right side
    1,382,137.40x = 1,453,193,945,817.60
  5. Step 5: Solve for x
    x = 1,453,193,945,817.60/1,382,137.40
  6. Step 6: Final answer
    x = 1,051,410.62

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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.