Home / 1,220,920.05-1,684,837.74-677,054.46

Finding the Fourth Proportional to 1,220,920.05, 1,684,837.74 and 677,054.46

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Solution

The fourth proportional to 1,220,920.05, 1,684,837.74 and 677,054.46 is: 934,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,920.05 : 1,684,837.74 = 677,054.46 : x
  2. Step 2: Convert to fraction form
    1,220,920.05/1,684,837.74 = 677,054.46/x
  3. Step 3: Cross multiply
    1,220,920.05x = 1,684,837.74 × 677,054.46
  4. Step 4: Simplify right side
    1,220,920.05x = 1,140,726,906,243.32
  5. Step 5: Solve for x
    x = 1,140,726,906,243.32/1,220,920.05
  6. Step 6: Final answer
    x = 934,317.45

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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.