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Finding the Fourth Proportional to 449,887.47, 620,442.33 and 373,285.06

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Solution

The fourth proportional to 449,887.47, 620,442.33 and 373,285.06 is: 514,799.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,887.47 : 620,442.33 = 373,285.06 : x
  2. Step 2: Convert to fraction form
    449,887.47/620,442.33 = 373,285.06/x
  3. Step 3: Cross multiply
    449,887.47x = 620,442.33 × 373,285.06
  4. Step 4: Simplify right side
    449,887.47x = 231,601,851,529.39
  5. Step 5: Solve for x
    x = 231,601,851,529.39/449,887.47
  6. Step 6: Final answer
    x = 514,799.52

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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.