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Finding the Fourth Proportional to 1,740.99, 2,611.90 and 508.41

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Solution

The fourth proportional to 1,740.99, 2,611.90 and 508.41 is: 762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.99 : 2,611.90 = 508.41 : x
  2. Step 2: Convert to fraction form
    1,740.99/2,611.90 = 508.41/x
  3. Step 3: Cross multiply
    1,740.99x = 2,611.90 × 508.41
  4. Step 4: Simplify right side
    1,740.99x = 1,327,916.08
  5. Step 5: Solve for x
    x = 1,327,916.08/1,740.99
  6. Step 6: Final answer
    x = 762.74

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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.