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Finding the Fourth Proportional to 404,384.81, 606,703.07 and 120,076.85

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Solution

The fourth proportional to 404,384.81, 606,703.07 and 120,076.85 is: 180,152.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,384.81 : 606,703.07 = 120,076.85 : x
  2. Step 2: Convert to fraction form
    404,384.81/606,703.07 = 120,076.85/x
  3. Step 3: Cross multiply
    404,384.81x = 606,703.07 × 120,076.85
  4. Step 4: Simplify right side
    404,384.81x = 72,850,990,797.61
  5. Step 5: Solve for x
    x = 72,850,990,797.61/404,384.81
  6. Step 6: Final answer
    x = 180,152.64

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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.