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Finding the Fourth Proportional to 490,676.40, 736,014.60 and 322,714.80

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Solution

The fourth proportional to 490,676.40, 736,014.60 and 322,714.80 is: 484,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,676.40 : 736,014.60 = 322,714.80 : x
  2. Step 2: Convert to fraction form
    490,676.40/736,014.60 = 322,714.80/x
  3. Step 3: Cross multiply
    490,676.40x = 736,014.60 × 322,714.80
  4. Step 4: Simplify right side
    490,676.40x = 237,522,804,436.08
  5. Step 5: Solve for x
    x = 237,522,804,436.08/490,676.40
  6. Step 6: Final answer
    x = 484,072.20

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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.