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Finding the Fourth Proportional to 552,373.98, 758,972.64 and 438,999.90

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Solution

The fourth proportional to 552,373.98, 758,972.64 and 438,999.90 is: 603,194.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,373.98 : 758,972.64 = 438,999.90 : x
  2. Step 2: Convert to fraction form
    552,373.98/758,972.64 = 438,999.90/x
  3. Step 3: Cross multiply
    552,373.98x = 758,972.64 × 438,999.90
  4. Step 4: Simplify right side
    552,373.98x = 333,188,913,062.74
  5. Step 5: Solve for x
    x = 333,188,913,062.74/552,373.98
  6. Step 6: Final answer
    x = 603,194.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.