Home / 1,220,021.67-1,683,630.06-676,192.56

Finding the Fourth Proportional to 1,220,021.67, 1,683,630.06 and 676,192.56

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Solution

The fourth proportional to 1,220,021.67, 1,683,630.06 and 676,192.56 is: 933,145.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,021.67 : 1,683,630.06 = 676,192.56 : x
  2. Step 2: Convert to fraction form
    1,220,021.67/1,683,630.06 = 676,192.56/x
  3. Step 3: Cross multiply
    1,220,021.67x = 1,683,630.06 × 676,192.56
  4. Step 4: Simplify right side
    1,220,021.67x = 1,138,458,124,142.24
  5. Step 5: Solve for x
    x = 1,138,458,124,142.24/1,220,021.67
  6. Step 6: Final answer
    x = 933,145.82

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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.