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Finding the Fourth Proportional to 636,521.41, 953,912.58 and 351,790.21

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Solution

The fourth proportional to 636,521.41, 953,912.58 and 351,790.21 is: 527,204.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,521.41 : 953,912.58 = 351,790.21 : x
  2. Step 2: Convert to fraction form
    636,521.41/953,912.58 = 351,790.21/x
  3. Step 3: Cross multiply
    636,521.41x = 953,912.58 × 351,790.21
  4. Step 4: Simplify right side
    636,521.41x = 335,577,106,839.84
  5. Step 5: Solve for x
    x = 335,577,106,839.84/636,521.41
  6. Step 6: Final answer
    x = 527,204.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.