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Finding the Fourth Proportional to 489,337.24, 734,137.08 and 389,872.48

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Solution

The fourth proportional to 489,337.24, 734,137.08 and 389,872.48 is: 584,913.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,337.24 : 734,137.08 = 389,872.48 : x
  2. Step 2: Convert to fraction form
    489,337.24/734,137.08 = 389,872.48/x
  3. Step 3: Cross multiply
    489,337.24x = 734,137.08 × 389,872.48
  4. Step 4: Simplify right side
    489,337.24x = 286,219,844,039.56
  5. Step 5: Solve for x
    x = 286,219,844,039.56/489,337.24
  6. Step 6: Final answer
    x = 584,913.27

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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.