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Finding the Fourth Proportional to 383,954.66, 575,483.55 and 288,879.39

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Solution

The fourth proportional to 383,954.66, 575,483.55 and 288,879.39 is: 432,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,954.66 : 575,483.55 = 288,879.39 : x
  2. Step 2: Convert to fraction form
    383,954.66/575,483.55 = 288,879.39/x
  3. Step 3: Cross multiply
    383,954.66x = 575,483.55 × 288,879.39
  4. Step 4: Simplify right side
    383,954.66x = 166,245,336,879.04
  5. Step 5: Solve for x
    x = 166,245,336,879.04/383,954.66
  6. Step 6: Final answer
    x = 432,981.69

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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.