Home / 2,290,889.40-3,436,334.10-1,920,406.20

Finding the Fourth Proportional to 2,290,889.40, 3,436,334.10 and 1,920,406.20

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Solution

The fourth proportional to 2,290,889.40, 3,436,334.10 and 1,920,406.20 is: 2,880,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290,889.40 : 3,436,334.10 = 1,920,406.20 : x
  2. Step 2: Convert to fraction form
    2,290,889.40/3,436,334.10 = 1,920,406.20/x
  3. Step 3: Cross multiply
    2,290,889.40x = 3,436,334.10 × 1,920,406.20
  4. Step 4: Simplify right side
    2,290,889.40x = 6,599,157,310,911.42
  5. Step 5: Solve for x
    x = 6,599,157,310,911.42/2,290,889.40
  6. Step 6: Final answer
    x = 2,880,609.30

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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.