Home / 630,485.22-945,736.08-209,761.10

Finding the Fourth Proportional to 630,485.22, 945,736.08 and 209,761.10

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Solution

The fourth proportional to 630,485.22, 945,736.08 and 209,761.10 is: 314,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,485.22 : 945,736.08 = 209,761.10 : x
  2. Step 2: Convert to fraction form
    630,485.22/945,736.08 = 209,761.10/x
  3. Step 3: Cross multiply
    630,485.22x = 945,736.08 × 209,761.10
  4. Step 4: Simplify right side
    630,485.22x = 198,378,640,450.49
  5. Step 5: Solve for x
    x = 198,378,640,450.49/630,485.22
  6. Step 6: Final answer
    x = 314,644.39

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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.