Home / 1,012,020.39-1,395,683.75-839,665.35

Finding the Fourth Proportional to 1,012,020.39, 1,395,683.75 and 839,665.35

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Solution

The fourth proportional to 1,012,020.39, 1,395,683.75 and 839,665.35 is: 1,157,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,020.39 : 1,395,683.75 = 839,665.35 : x
  2. Step 2: Convert to fraction form
    1,012,020.39/1,395,683.75 = 839,665.35/x
  3. Step 3: Cross multiply
    1,012,020.39x = 1,395,683.75 × 839,665.35
  4. Step 4: Simplify right side
    1,012,020.39x = 1,171,907,286,532.23
  5. Step 5: Solve for x
    x = 1,171,907,286,532.23/1,012,020.39
  6. Step 6: Final answer
    x = 1,157,987.82

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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.