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Finding the Fourth Proportional to 1,299,841.30, 1,949,761.95 and 984,913.30

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Solution

The fourth proportional to 1,299,841.30, 1,949,761.95 and 984,913.30 is: 1,477,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,841.30 : 1,949,761.95 = 984,913.30 : x
  2. Step 2: Convert to fraction form
    1,299,841.30/1,949,761.95 = 984,913.30/x
  3. Step 3: Cross multiply
    1,299,841.30x = 1,949,761.95 × 984,913.30
  4. Step 4: Simplify right side
    1,299,841.30x = 1,920,346,476,388.94
  5. Step 5: Solve for x
    x = 1,920,346,476,388.94/1,299,841.30
  6. Step 6: Final answer
    x = 1,477,369.95

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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.