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Finding the Fourth Proportional to 399,004.57, 597,830.23 and 240,900.94

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Solution

The fourth proportional to 399,004.57, 597,830.23 and 240,900.94 is: 360,942.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,004.57 : 597,830.23 = 240,900.94 : x
  2. Step 2: Convert to fraction form
    399,004.57/597,830.23 = 240,900.94/x
  3. Step 3: Cross multiply
    399,004.57x = 597,830.23 × 240,900.94
  4. Step 4: Simplify right side
    399,004.57x = 144,017,864,367.42
  5. Step 5: Solve for x
    x = 144,017,864,367.42/399,004.57
  6. Step 6: Final answer
    x = 360,942.89

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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.