Home / 1,299,375.40-1,949,063.10-458,012.20

Finding the Fourth Proportional to 1,299,375.40, 1,949,063.10 and 458,012.20

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Solution

The fourth proportional to 1,299,375.40, 1,949,063.10 and 458,012.20 is: 687,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,375.40 : 1,949,063.10 = 458,012.20 : x
  2. Step 2: Convert to fraction form
    1,299,375.40/1,949,063.10 = 458,012.20/x
  3. Step 3: Cross multiply
    1,299,375.40x = 1,949,063.10 × 458,012.20
  4. Step 4: Simplify right side
    1,299,375.40x = 892,694,678,369.82
  5. Step 5: Solve for x
    x = 892,694,678,369.82/1,299,375.40
  6. Step 6: Final answer
    x = 687,018.30

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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.