Home / 1,138,076.56-1,570,411.80-628,748.56

Finding the Fourth Proportional to 1,138,076.56, 1,570,411.80 and 628,748.56

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Solution

The fourth proportional to 1,138,076.56, 1,570,411.80 and 628,748.56 is: 867,599.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,076.56 : 1,570,411.80 = 628,748.56 : x
  2. Step 2: Convert to fraction form
    1,138,076.56/1,570,411.80 = 628,748.56/x
  3. Step 3: Cross multiply
    1,138,076.56x = 1,570,411.80 × 628,748.56
  4. Step 4: Simplify right side
    1,138,076.56x = 987,394,157,857.01
  5. Step 5: Solve for x
    x = 987,394,157,857.01/1,138,076.56
  6. Step 6: Final answer
    x = 867,599.06

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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.