Home / 1,100,661.37-1,518,928.25-665,018.15

Finding the Fourth Proportional to 1,100,661.37, 1,518,928.25 and 665,018.15

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Solution

The fourth proportional to 1,100,661.37, 1,518,928.25 and 665,018.15 is: 917,734.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,661.37 : 1,518,928.25 = 665,018.15 : x
  2. Step 2: Convert to fraction form
    1,100,661.37/1,518,928.25 = 665,018.15/x
  3. Step 3: Cross multiply
    1,100,661.37x = 1,518,928.25 × 665,018.15
  4. Step 4: Simplify right side
    1,100,661.37x = 1,010,114,843,878.01
  5. Step 5: Solve for x
    x = 1,010,114,843,878.01/1,100,661.37
  6. Step 6: Final answer
    x = 917,734.44

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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.