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Finding the Fourth Proportional to 560,804.36, 773,906.07 and 306,155.54

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Solution

The fourth proportional to 560,804.36, 773,906.07 and 306,155.54 is: 422,492.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,804.36 : 773,906.07 = 306,155.54 : x
  2. Step 2: Convert to fraction form
    560,804.36/773,906.07 = 306,155.54/x
  3. Step 3: Cross multiply
    560,804.36x = 773,906.07 × 306,155.54
  4. Step 4: Simplify right side
    560,804.36x = 236,935,632,704.89
  5. Step 5: Solve for x
    x = 236,935,632,704.89/560,804.36
  6. Step 6: Final answer
    x = 422,492.50

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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.