Home / 2,628,579.60-3,942,869.40-1,211,403.60

Finding the Fourth Proportional to 2,628,579.60, 3,942,869.40 and 1,211,403.60

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Solution

The fourth proportional to 2,628,579.60, 3,942,869.40 and 1,211,403.60 is: 1,817,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,579.60 : 3,942,869.40 = 1,211,403.60 : x
  2. Step 2: Convert to fraction form
    2,628,579.60/3,942,869.40 = 1,211,403.60/x
  3. Step 3: Cross multiply
    2,628,579.60x = 3,942,869.40 × 1,211,403.60
  4. Step 4: Simplify right side
    2,628,579.60x = 4,776,406,185,489.84
  5. Step 5: Solve for x
    x = 4,776,406,185,489.84/2,628,579.60
  6. Step 6: Final answer
    x = 1,817,105.40

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Similar ratio
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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.