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Finding the Fourth Proportional to 2,989,638, 4,484,457 and 969,571.71

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Solution

The fourth proportional to 2,989,638, 4,484,457 and 969,571.71 is: 1,454,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,638 : 4,484,457 = 969,571.71 : x
  2. Step 2: Convert to fraction form
    2,989,638/4,484,457 = 969,571.71/x
  3. Step 3: Cross multiply
    2,989,638x = 4,484,457 × 969,571.71
  4. Step 4: Simplify right side
    2,989,638x = 4,348,002,641,911.47
  5. Step 5: Solve for x
    x = 4,348,002,641,911.47/2,989,638
  6. Step 6: Final answer
    x = 1,454,357.57

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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.