Home / 1,220,427.36-1,684,185.12-683,883.36

Finding the Fourth Proportional to 1,220,427.36, 1,684,185.12 and 683,883.36

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Solution

The fourth proportional to 1,220,427.36, 1,684,185.12 and 683,883.36 is: 943,756.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,427.36 : 1,684,185.12 = 683,883.36 : x
  2. Step 2: Convert to fraction form
    1,220,427.36/1,684,185.12 = 683,883.36/x
  3. Step 3: Cross multiply
    1,220,427.36x = 1,684,185.12 × 683,883.36
  4. Step 4: Simplify right side
    1,220,427.36x = 1,151,786,178,727.60
  5. Step 5: Solve for x
    x = 1,151,786,178,727.60/1,220,427.36
  6. Step 6: Final answer
    x = 943,756.44

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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.