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Finding the Fourth Proportional to 563,521.56, 777,679.02 and 308,872.68

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Solution

The fourth proportional to 563,521.56, 777,679.02 and 308,872.68 is: 426,254.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,521.56 : 777,679.02 = 308,872.68 : x
  2. Step 2: Convert to fraction form
    563,521.56/777,679.02 = 308,872.68/x
  3. Step 3: Cross multiply
    563,521.56x = 777,679.02 × 308,872.68
  4. Step 4: Simplify right side
    563,521.56x = 240,203,803,087.17
  5. Step 5: Solve for x
    x = 240,203,803,087.17/563,521.56
  6. Step 6: Final answer
    x = 426,254.86

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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.