Home / 988,858.60-1,482,942.30-515,386.60

Finding the Fourth Proportional to 988,858.60, 1,482,942.30 and 515,386.60

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Solution

The fourth proportional to 988,858.60, 1,482,942.30 and 515,386.60 is: 772,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,858.60 : 1,482,942.30 = 515,386.60 : x
  2. Step 2: Convert to fraction form
    988,858.60/1,482,942.30 = 515,386.60/x
  3. Step 3: Cross multiply
    988,858.60x = 1,482,942.30 × 515,386.60
  4. Step 4: Simplify right side
    988,858.60x = 764,288,589,993.18
  5. Step 5: Solve for x
    x = 764,288,589,993.18/988,858.60
  6. Step 6: Final answer
    x = 772,899.78

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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.