Home / 1,220,014.15-1,683,619.73-676,185.09

Finding the Fourth Proportional to 1,220,014.15, 1,683,619.73 and 676,185.09

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Solution

The fourth proportional to 1,220,014.15, 1,683,619.73 and 676,185.09 is: 933,135.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,014.15 : 1,683,619.73 = 676,185.09 : x
  2. Step 2: Convert to fraction form
    1,220,014.15/1,683,619.73 = 676,185.09/x
  3. Step 3: Cross multiply
    1,220,014.15x = 1,683,619.73 × 676,185.09
  4. Step 4: Simplify right side
    1,220,014.15x = 1,138,438,556,232.20
  5. Step 5: Solve for x
    x = 1,138,438,556,232.20/1,220,014.15
  6. Step 6: Final answer
    x = 933,135.53

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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.