Home / 1,138,106.88-1,570,650.48-628,798.32

Finding the Fourth Proportional to 1,138,106.88, 1,570,650.48 and 628,798.32

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Solution

The fourth proportional to 1,138,106.88, 1,570,650.48 and 628,798.32 is: 867,776.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,106.88 : 1,570,650.48 = 628,798.32 : x
  2. Step 2: Convert to fraction form
    1,138,106.88/1,570,650.48 = 628,798.32/x
  3. Step 3: Cross multiply
    1,138,106.88x = 1,570,650.48 × 628,798.32
  4. Step 4: Simplify right side
    1,138,106.88x = 987,622,383,131.19
  5. Step 5: Solve for x
    x = 987,622,383,131.19/1,138,106.88
  6. Step 6: Final answer
    x = 867,776.48

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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.