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Finding the Fourth Proportional to 994.53, 1,492.68 and 507.93

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Solution

The fourth proportional to 994.53, 1,492.68 and 507.93 is: 762.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.53 : 1,492.68 = 507.93 : x
  2. Step 2: Convert to fraction form
    994.53/1,492.68 = 507.93/x
  3. Step 3: Cross multiply
    994.53x = 1,492.68 × 507.93
  4. Step 4: Simplify right side
    994.53x = 758,176.95
  5. Step 5: Solve for x
    x = 758,176.95/994.53
  6. Step 6: Final answer
    x = 762.35

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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.