Home / 1,015,968.42-1,400,989.84-709,933.28

Finding the Fourth Proportional to 1,015,968.42, 1,400,989.84 and 709,933.28

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Solution

The fourth proportional to 1,015,968.42, 1,400,989.84 and 709,933.28 is: 978,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,968.42 : 1,400,989.84 = 709,933.28 : x
  2. Step 2: Convert to fraction form
    1,015,968.42/1,400,989.84 = 709,933.28/x
  3. Step 3: Cross multiply
    1,015,968.42x = 1,400,989.84 × 709,933.28
  4. Step 4: Simplify right side
    1,015,968.42x = 994,609,303,578.09
  5. Step 5: Solve for x
    x = 994,609,303,578.09/1,015,968.42
  6. Step 6: Final answer
    x = 978,976.59

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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.