Home / 1,138,135.06-1,570,658.07-628,870.24

Finding the Fourth Proportional to 1,138,135.06, 1,570,658.07 and 628,870.24

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Solution

The fourth proportional to 1,138,135.06, 1,570,658.07 and 628,870.24 is: 867,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,135.06 : 1,570,658.07 = 628,870.24 : x
  2. Step 2: Convert to fraction form
    1,138,135.06/1,570,658.07 = 628,870.24/x
  3. Step 3: Cross multiply
    1,138,135.06x = 1,570,658.07 × 628,870.24
  4. Step 4: Simplify right side
    1,138,135.06x = 987,740,117,438.84
  5. Step 5: Solve for x
    x = 987,740,117,438.84/1,138,135.06
  6. Step 6: Final answer
    x = 867,858.44

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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.