Home / 1,012,621-1,396,907.48-668,093.80

Finding the Fourth Proportional to 1,012,621, 1,396,907.48 and 668,093.80

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Solution

The fourth proportional to 1,012,621, 1,396,907.48 and 668,093.80 is: 921,633.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,621 : 1,396,907.48 = 668,093.80 : x
  2. Step 2: Convert to fraction form
    1,012,621/1,396,907.48 = 668,093.80/x
  3. Step 3: Cross multiply
    1,012,621x = 1,396,907.48 × 668,093.80
  4. Step 4: Simplify right side
    1,012,621x = 933,265,226,561.62
  5. Step 5: Solve for x
    x = 933,265,226,561.62/1,012,621
  6. Step 6: Final answer
    x = 921,633.29

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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.