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Finding the Fourth Proportional to 449,918.44, 620,485.22 and 373,316.20

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Solution

The fourth proportional to 449,918.44, 620,485.22 and 373,316.20 is: 514,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,918.44 : 620,485.22 = 373,316.20 : x
  2. Step 2: Convert to fraction form
    449,918.44/620,485.22 = 373,316.20/x
  3. Step 3: Cross multiply
    449,918.44x = 620,485.22 × 373,316.20
  4. Step 4: Simplify right side
    449,918.44x = 231,637,184,486.56
  5. Step 5: Solve for x
    x = 231,637,184,486.56/449,918.44
  6. Step 6: Final answer
    x = 514,842.61

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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.