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Finding the Fourth Proportional to 563,038.06, 776,992.63 and 308,398.36

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Solution

The fourth proportional to 563,038.06, 776,992.63 and 308,398.36 is: 425,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,038.06 : 776,992.63 = 308,398.36 : x
  2. Step 2: Convert to fraction form
    563,038.06/776,992.63 = 308,398.36/x
  3. Step 3: Cross multiply
    563,038.06x = 776,992.63 × 308,398.36
  4. Step 4: Simplify right side
    563,038.06x = 239,623,252,824.09
  5. Step 5: Solve for x
    x = 239,623,252,824.09/563,038.06
  6. Step 6: Final answer
    x = 425,589.80

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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.