Home / 389,927.01-584,890.49-212,583.15

Finding the Fourth Proportional to 389,927.01, 584,890.49 and 212,583.15

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Solution

The fourth proportional to 389,927.01, 584,890.49 and 212,583.15 is: 318,874.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,927.01 : 584,890.49 = 212,583.15 : x
  2. Step 2: Convert to fraction form
    389,927.01/584,890.49 = 212,583.15/x
  3. Step 3: Cross multiply
    389,927.01x = 584,890.49 × 212,583.15
  4. Step 4: Simplify right side
    389,927.01x = 124,337,861,706.33
  5. Step 5: Solve for x
    x = 124,337,861,706.33/389,927.01
  6. Step 6: Final answer
    x = 318,874.71

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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.