Home / 1,138,075.56-1,570,410.42-628,747.56

Finding the Fourth Proportional to 1,138,075.56, 1,570,410.42 and 628,747.56

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Solution

The fourth proportional to 1,138,075.56, 1,570,410.42 and 628,747.56 is: 867,597.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,075.56 : 1,570,410.42 = 628,747.56 : x
  2. Step 2: Convert to fraction form
    1,138,075.56/1,570,410.42 = 628,747.56/x
  3. Step 3: Cross multiply
    1,138,075.56x = 1,570,410.42 × 628,747.56
  4. Step 4: Simplify right side
    1,138,075.56x = 987,391,719,773.58
  5. Step 5: Solve for x
    x = 987,391,719,773.58/1,138,075.56
  6. Step 6: Final answer
    x = 867,597.68

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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.