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Finding the Fourth Proportional to 668,892.70, 1,004,977.45 and 503,004.70

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Solution

The fourth proportional to 668,892.70, 1,004,977.45 and 503,004.70 is: 755,739.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,892.70 : 1,004,977.45 = 503,004.70 : x
  2. Step 2: Convert to fraction form
    668,892.70/1,004,977.45 = 503,004.70/x
  3. Step 3: Cross multiply
    668,892.70x = 1,004,977.45 × 503,004.70
  4. Step 4: Simplify right side
    668,892.70x = 505,508,380,744.02
  5. Step 5: Solve for x
    x = 505,508,380,744.02/668,892.70
  6. Step 6: Final answer
    x = 755,739.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.