Home / 289,226.80-433,840.20-283,321.90

Finding the Fourth Proportional to 289,226.80, 433,840.20 and 283,321.90

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Solution

The fourth proportional to 289,226.80, 433,840.20 and 283,321.90 is: 424,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,226.80 : 433,840.20 = 283,321.90 : x
  2. Step 2: Convert to fraction form
    289,226.80/433,840.20 = 283,321.90/x
  3. Step 3: Cross multiply
    289,226.80x = 433,840.20 × 283,321.90
  4. Step 4: Simplify right side
    289,226.80x = 122,916,429,760.38
  5. Step 5: Solve for x
    x = 122,916,429,760.38/289,226.80
  6. Step 6: Final answer
    x = 424,982.85

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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.