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Finding the Fourth Proportional to 489,529.89, 734,301.32 and 190,027.53

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Solution

The fourth proportional to 489,529.89, 734,301.32 and 190,027.53 is: 285,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,529.89 : 734,301.32 = 190,027.53 : x
  2. Step 2: Convert to fraction form
    489,529.89/734,301.32 = 190,027.53/x
  3. Step 3: Cross multiply
    489,529.89x = 734,301.32 × 190,027.53
  4. Step 4: Simplify right side
    489,529.89x = 139,537,465,165.20
  5. Step 5: Solve for x
    x = 139,537,465,165.20/489,529.89
  6. Step 6: Final answer
    x = 285,043.81

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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.