Home / 938,845.44-1,408,443.24-426,546.45

Finding the Fourth Proportional to 938,845.44, 1,408,443.24 and 426,546.45

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Solution

The fourth proportional to 938,845.44, 1,408,443.24 and 426,546.45 is: 639,899.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,845.44 : 1,408,443.24 = 426,546.45 : x
  2. Step 2: Convert to fraction form
    938,845.44/1,408,443.24 = 426,546.45/x
  3. Step 3: Cross multiply
    938,845.44x = 1,408,443.24 × 426,546.45
  4. Step 4: Simplify right side
    938,845.44x = 600,766,464,048.50
  5. Step 5: Solve for x
    x = 600,766,464,048.50/938,845.44
  6. Step 6: Final answer
    x = 639,899.22

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1.5x scale

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.