Home / 1,321,752.60-1,978,692.30-788,999.40

Finding the Fourth Proportional to 1,321,752.60, 1,978,692.30 and 788,999.40

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Solution

The fourth proportional to 1,321,752.60, 1,978,692.30 and 788,999.40 is: 1,181,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,752.60 : 1,978,692.30 = 788,999.40 : x
  2. Step 2: Convert to fraction form
    1,321,752.60/1,978,692.30 = 788,999.40/x
  3. Step 3: Cross multiply
    1,321,752.60x = 1,978,692.30 × 788,999.40
  4. Step 4: Simplify right side
    1,321,752.60x = 1,561,187,037,484.62
  5. Step 5: Solve for x
    x = 1,561,187,037,484.62/1,321,752.60
  6. Step 6: Final answer
    x = 1,181,149.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.