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Finding the Fourth Proportional to 562,996.31, 776,906.03 and 308,342.03

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Solution

The fourth proportional to 562,996.31, 776,906.03 and 308,342.03 is: 425,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,996.31 : 776,906.03 = 308,342.03 : x
  2. Step 2: Convert to fraction form
    562,996.31/776,906.03 = 308,342.03/x
  3. Step 3: Cross multiply
    562,996.31x = 776,906.03 × 308,342.03
  4. Step 4: Simplify right side
    562,996.31x = 239,552,779,295.77
  5. Step 5: Solve for x
    x = 239,552,779,295.77/562,996.31
  6. Step 6: Final answer
    x = 425,496.18

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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.