Home / 1,993,087.50-2,989,631.25-646,376.64

Finding the Fourth Proportional to 1,993,087.50, 2,989,631.25 and 646,376.64

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Solution

The fourth proportional to 1,993,087.50, 2,989,631.25 and 646,376.64 is: 969,564.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,087.50 : 2,989,631.25 = 646,376.64 : x
  2. Step 2: Convert to fraction form
    1,993,087.50/2,989,631.25 = 646,376.64/x
  3. Step 3: Cross multiply
    1,993,087.50x = 2,989,631.25 × 646,376.64
  4. Step 4: Simplify right side
    1,993,087.50x = 1,932,427,802,214
  5. Step 5: Solve for x
    x = 1,932,427,802,214/1,993,087.50
  6. Step 6: Final answer
    x = 969,564.96

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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.