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Finding the Fourth Proportional to 562,665.96, 776,481.12 and 308,040.84

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Solution

The fourth proportional to 562,665.96, 776,481.12 and 308,040.84 is: 425,097.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,665.96 : 776,481.12 = 308,040.84 : x
  2. Step 2: Convert to fraction form
    562,665.96/776,481.12 = 308,040.84/x
  3. Step 3: Cross multiply
    562,665.96x = 776,481.12 × 308,040.84
  4. Step 4: Simplify right side
    562,665.96x = 239,187,896,448.94
  5. Step 5: Solve for x
    x = 239,187,896,448.94/562,665.96
  6. Step 6: Final answer
    x = 425,097.51

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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.