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Finding the Fourth Proportional to 659,758.86, 989,572.67 and 304,767.75

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Solution

The fourth proportional to 659,758.86, 989,572.67 and 304,767.75 is: 457,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,758.86 : 989,572.67 = 304,767.75 : x
  2. Step 2: Convert to fraction form
    659,758.86/989,572.67 = 304,767.75/x
  3. Step 3: Cross multiply
    659,758.86x = 989,572.67 × 304,767.75
  4. Step 4: Simplify right side
    659,758.86x = 301,589,834,573.55
  5. Step 5: Solve for x
    x = 301,589,834,573.55/659,758.86
  6. Step 6: Final answer
    x = 457,121.31

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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.