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Finding the Fourth Proportional to 563,202.79, 777,222.62 and 308,554.09

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Solution

The fourth proportional to 563,202.79, 777,222.62 and 308,554.09 is: 425,806.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,202.79 : 777,222.62 = 308,554.09 : x
  2. Step 2: Convert to fraction form
    563,202.79/777,222.62 = 308,554.09/x
  3. Step 3: Cross multiply
    563,202.79x = 777,222.62 × 308,554.09
  4. Step 4: Simplify right side
    563,202.79x = 239,815,218,241.52
  5. Step 5: Solve for x
    x = 239,815,218,241.52/563,202.79
  6. Step 6: Final answer
    x = 425,806.16

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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.