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Finding the Fourth Proportional to 667,762.94, 921,558.06 and 377,273.75

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Solution

The fourth proportional to 667,762.94, 921,558.06 and 377,273.75 is: 520,663.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,762.94 : 921,558.06 = 377,273.75 : x
  2. Step 2: Convert to fraction form
    667,762.94/921,558.06 = 377,273.75/x
  3. Step 3: Cross multiply
    667,762.94x = 921,558.06 × 377,273.75
  4. Step 4: Simplify right side
    667,762.94x = 347,679,665,714.90
  5. Step 5: Solve for x
    x = 347,679,665,714.90/667,762.94
  6. Step 6: Final answer
    x = 520,663.32

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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.