Home / 1,320,559.21-1,822,805.81-776,671.75

Finding the Fourth Proportional to 1,320,559.21, 1,822,805.81 and 776,671.75

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Solution

The fourth proportional to 1,320,559.21, 1,822,805.81 and 776,671.75 is: 1,072,062.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,559.21 : 1,822,805.81 = 776,671.75 : x
  2. Step 2: Convert to fraction form
    1,320,559.21/1,822,805.81 = 776,671.75/x
  3. Step 3: Cross multiply
    1,320,559.21x = 1,822,805.81 × 776,671.75
  4. Step 4: Simplify right side
    1,320,559.21x = 1,415,721,778,362.87
  5. Step 5: Solve for x
    x = 1,415,721,778,362.87/1,320,559.21
  6. Step 6: Final answer
    x = 1,072,062.33

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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.