Home / 612,072.20-844,664.30-340,165.60

Finding the Fourth Proportional to 612,072.20, 844,664.30 and 340,165.60

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Solution

The fourth proportional to 612,072.20, 844,664.30 and 340,165.60 is: 469,431.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,072.20 : 844,664.30 = 340,165.60 : x
  2. Step 2: Convert to fraction form
    612,072.20/844,664.30 = 340,165.60/x
  3. Step 3: Cross multiply
    612,072.20x = 844,664.30 × 340,165.60
  4. Step 4: Simplify right side
    612,072.20x = 287,325,738,408.08
  5. Step 5: Solve for x
    x = 287,325,738,408.08/612,072.20
  6. Step 6: Final answer
    x = 469,431.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.