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Finding the Fourth Proportional to 563,001.68, 776,961 and 308,366.96

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Solution

The fourth proportional to 563,001.68, 776,961 and 308,366.96 is: 425,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,001.68 : 776,961 = 308,366.96 : x
  2. Step 2: Convert to fraction form
    563,001.68/776,961 = 308,366.96/x
  3. Step 3: Cross multiply
    563,001.68x = 776,961 × 308,366.96
  4. Step 4: Simplify right side
    563,001.68x = 239,589,101,608.56
  5. Step 5: Solve for x
    x = 239,589,101,608.56/563,001.68
  6. Step 6: Final answer
    x = 425,556.64

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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.