Home / 1,218,618.72-1,681,692.48-682,074.72

Finding the Fourth Proportional to 1,218,618.72, 1,681,692.48 and 682,074.72

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Solution

The fourth proportional to 1,218,618.72, 1,681,692.48 and 682,074.72 is: 941,262.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,618.72 : 1,681,692.48 = 682,074.72 : x
  2. Step 2: Convert to fraction form
    1,218,618.72/1,681,692.48 = 682,074.72/x
  3. Step 3: Cross multiply
    1,218,618.72x = 1,681,692.48 × 682,074.72
  4. Step 4: Simplify right side
    1,218,618.72x = 1,147,039,927,422.11
  5. Step 5: Solve for x
    x = 1,147,039,927,422.11/1,218,618.72
  6. Step 6: Final answer
    x = 941,262.36

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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.