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Finding the Fourth Proportional to 554,879.27, 765,733.83 and 385,211.81

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Solution

The fourth proportional to 554,879.27, 765,733.83 and 385,211.81 is: 531,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,879.27 : 765,733.83 = 385,211.81 : x
  2. Step 2: Convert to fraction form
    554,879.27/765,733.83 = 385,211.81/x
  3. Step 3: Cross multiply
    554,879.27x = 765,733.83 × 385,211.81
  4. Step 4: Simplify right side
    554,879.27x = 294,969,714,632.53
  5. Step 5: Solve for x
    x = 294,969,714,632.53/554,879.27
  6. Step 6: Final answer
    x = 531,592.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.