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Finding the Fourth Proportional to 563,672.88, 777,867.75 and 309,040.38

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Solution

The fourth proportional to 563,672.88, 777,867.75 and 309,040.38 is: 426,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,672.88 : 777,867.75 = 309,040.38 : x
  2. Step 2: Convert to fraction form
    563,672.88/777,867.75 = 309,040.38/x
  3. Step 3: Cross multiply
    563,672.88x = 777,867.75 × 309,040.38
  4. Step 4: Simplify right side
    563,672.88x = 240,392,545,049.75
  5. Step 5: Solve for x
    x = 240,392,545,049.75/563,672.88
  6. Step 6: Final answer
    x = 426,475.27

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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.