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Finding the Fourth Proportional to 603,180.99, 903,393.03 and 287,859.33

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Solution

The fourth proportional to 603,180.99, 903,393.03 and 287,859.33 is: 431,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,180.99 : 903,393.03 = 287,859.33 : x
  2. Step 2: Convert to fraction form
    603,180.99/903,393.03 = 287,859.33/x
  3. Step 3: Cross multiply
    603,180.99x = 903,393.03 × 287,859.33
  4. Step 4: Simplify right side
    603,180.99x = 260,050,112,342.47
  5. Step 5: Solve for x
    x = 260,050,112,342.47/603,180.99
  6. Step 6: Final answer
    x = 431,131.15

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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.