Home / 1,220,480.82-1,684,362.96-676,787.07

Finding the Fourth Proportional to 1,220,480.82, 1,684,362.96 and 676,787.07

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Solution

The fourth proportional to 1,220,480.82, 1,684,362.96 and 676,787.07 is: 934,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,480.82 : 1,684,362.96 = 676,787.07 : x
  2. Step 2: Convert to fraction form
    1,220,480.82/1,684,362.96 = 676,787.07/x
  3. Step 3: Cross multiply
    1,220,480.82x = 1,684,362.96 × 676,787.07
  4. Step 4: Simplify right side
    1,220,480.82x = 1,139,955,072,514.93
  5. Step 5: Solve for x
    x = 1,139,955,072,514.93/1,220,480.82
  6. Step 6: Final answer
    x = 934,021.29

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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.