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Finding the Fourth Proportional to 623.40, 933.96 and 525.94

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Solution

The fourth proportional to 623.40, 933.96 and 525.94 is: 787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.40 : 933.96 = 525.94 : x
  2. Step 2: Convert to fraction form
    623.40/933.96 = 525.94/x
  3. Step 3: Cross multiply
    623.40x = 933.96 × 525.94
  4. Step 4: Simplify right side
    623.40x = 491,206.92
  5. Step 5: Solve for x
    x = 491,206.92/623.40
  6. Step 6: Final answer
    x = 787.95

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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.