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Finding the Fourth Proportional to 449,802.13, 620,325.16 and 373,199.94

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Solution

The fourth proportional to 449,802.13, 620,325.16 and 373,199.94 is: 514,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,802.13 : 620,325.16 = 373,199.94 : x
  2. Step 2: Convert to fraction form
    449,802.13/620,325.16 = 373,199.94/x
  3. Step 3: Cross multiply
    449,802.13x = 620,325.16 × 373,199.94
  4. Step 4: Simplify right side
    449,802.13x = 231,505,315,226.11
  5. Step 5: Solve for x
    x = 231,505,315,226.11/449,802.13
  6. Step 6: Final answer
    x = 514,682.57

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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.