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Finding the Fourth Proportional to 338,628.42, 508,004.82 and 276,004.08

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Solution

The fourth proportional to 338,628.42, 508,004.82 and 276,004.08 is: 414,056.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,628.42 : 508,004.82 = 276,004.08 : x
  2. Step 2: Convert to fraction form
    338,628.42/508,004.82 = 276,004.08/x
  3. Step 3: Cross multiply
    338,628.42x = 508,004.82 × 276,004.08
  4. Step 4: Simplify right side
    338,628.42x = 140,211,402,979.67
  5. Step 5: Solve for x
    x = 140,211,402,979.67/338,628.42
  6. Step 6: Final answer
    x = 414,056.81

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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.