Home / 2,686,458.40-4,029,687.60-889,619.20

Finding the Fourth Proportional to 2,686,458.40, 4,029,687.60 and 889,619.20

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Solution

The fourth proportional to 2,686,458.40, 4,029,687.60 and 889,619.20 is: 1,334,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,458.40 : 4,029,687.60 = 889,619.20 : x
  2. Step 2: Convert to fraction form
    2,686,458.40/4,029,687.60 = 889,619.20/x
  3. Step 3: Cross multiply
    2,686,458.40x = 4,029,687.60 × 889,619.20
  4. Step 4: Simplify right side
    2,686,458.40x = 3,584,887,458,961.92
  5. Step 5: Solve for x
    x = 3,584,887,458,961.92/2,686,458.40
  6. Step 6: Final answer
    x = 1,334,428.80

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Why These Related Problems?

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