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Finding the Fourth Proportional to 449,898.74, 620,457.88 and 373,296.44

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Solution

The fourth proportional to 449,898.74, 620,457.88 and 373,296.44 is: 514,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,898.74 : 620,457.88 = 373,296.44 : x
  2. Step 2: Convert to fraction form
    449,898.74/620,457.88 = 373,296.44/x
  3. Step 3: Cross multiply
    449,898.74x = 620,457.88 × 373,296.44
  4. Step 4: Simplify right side
    449,898.74x = 231,614,712,805.18
  5. Step 5: Solve for x
    x = 231,614,712,805.18/449,898.74
  6. Step 6: Final answer
    x = 514,815.21

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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.