Home / 328,445.20-493,367.81-309,247.96

Finding the Fourth Proportional to 328,445.20, 493,367.81 and 309,247.96

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Solution

The fourth proportional to 328,445.20, 493,367.81 and 309,247.96 is: 464,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,445.20 : 493,367.81 = 309,247.96 : x
  2. Step 2: Convert to fraction form
    328,445.20/493,367.81 = 309,247.96/x
  3. Step 3: Cross multiply
    328,445.20x = 493,367.81 × 309,247.96
  4. Step 4: Simplify right side
    328,445.20x = 152,572,988,139.26
  5. Step 5: Solve for x
    x = 152,572,988,139.26/328,445.20
  6. Step 6: Final answer
    x = 464,531.03

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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.