Home / 328,811.55-493,217.33-262,381.43

Finding the Fourth Proportional to 328,811.55, 493,217.33 and 262,381.43

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Solution

The fourth proportional to 328,811.55, 493,217.33 and 262,381.43 is: 393,572.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,811.55 : 493,217.33 = 262,381.43 : x
  2. Step 2: Convert to fraction form
    328,811.55/493,217.33 = 262,381.43/x
  3. Step 3: Cross multiply
    328,811.55x = 493,217.33 × 262,381.43
  4. Step 4: Simplify right side
    328,811.55x = 129,411,064,568.19
  5. Step 5: Solve for x
    x = 129,411,064,568.19/328,811.55
  6. Step 6: Final answer
    x = 393,572.14

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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.