Home / 1,182,556.44-1,631,926.80-638,692.20

Finding the Fourth Proportional to 1,182,556.44, 1,631,926.80 and 638,692.20

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Solution

The fourth proportional to 1,182,556.44, 1,631,926.80 and 638,692.20 is: 881,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,556.44 : 1,631,926.80 = 638,692.20 : x
  2. Step 2: Convert to fraction form
    1,182,556.44/1,631,926.80 = 638,692.20/x
  3. Step 3: Cross multiply
    1,182,556.44x = 1,631,926.80 × 638,692.20
  4. Step 4: Simplify right side
    1,182,556.44x = 1,042,298,918,130.96
  5. Step 5: Solve for x
    x = 1,042,298,918,130.96/1,182,556.44
  6. Step 6: Final answer
    x = 881,394.65

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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.