Home / 3,408,086.40-5,112,129.60-1,012,300.80

Finding the Fourth Proportional to 3,408,086.40, 5,112,129.60 and 1,012,300.80

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Solution

The fourth proportional to 3,408,086.40, 5,112,129.60 and 1,012,300.80 is: 1,518,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408,086.40 : 5,112,129.60 = 1,012,300.80 : x
  2. Step 2: Convert to fraction form
    3,408,086.40/5,112,129.60 = 1,012,300.80/x
  3. Step 3: Cross multiply
    3,408,086.40x = 5,112,129.60 × 1,012,300.80
  4. Step 4: Simplify right side
    3,408,086.40x = 5,175,012,883,783.68
  5. Step 5: Solve for x
    x = 5,175,012,883,783.68/3,408,086.40
  6. Step 6: Final answer
    x = 1,518,451.20

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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.