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Finding the Fourth Proportional to 386,059.65, 579,753.78 and 369,452.12

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Solution

The fourth proportional to 386,059.65, 579,753.78 and 369,452.12 is: 554,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,059.65 : 579,753.78 = 369,452.12 : x
  2. Step 2: Convert to fraction form
    386,059.65/579,753.78 = 369,452.12/x
  3. Step 3: Cross multiply
    386,059.65x = 579,753.78 × 369,452.12
  4. Step 4: Simplify right side
    386,059.65x = 214,191,260,200.25
  5. Step 5: Solve for x
    x = 214,191,260,200.25/386,059.65
  6. Step 6: Final answer
    x = 554,813.90

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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.