Home / 1,521,018.80-2,099,193.54-867,805.64

Finding the Fourth Proportional to 1,521,018.80, 2,099,193.54 and 867,805.64

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Solution

The fourth proportional to 1,521,018.80, 2,099,193.54 and 867,805.64 is: 1,197,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,018.80 : 2,099,193.54 = 867,805.64 : x
  2. Step 2: Convert to fraction form
    1,521,018.80/2,099,193.54 = 867,805.64/x
  3. Step 3: Cross multiply
    1,521,018.80x = 2,099,193.54 × 867,805.64
  4. Step 4: Simplify right side
    1,521,018.80x = 1,821,691,993,463.57
  5. Step 5: Solve for x
    x = 1,821,691,993,463.57/1,521,018.80
  6. Step 6: Final answer
    x = 1,197,678.81

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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.