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Finding the Fourth Proportional to 439,458.94, 658,506.55 and 304,785.70

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Solution

The fourth proportional to 439,458.94, 658,506.55 and 304,785.70 is: 456,705.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,458.94 : 658,506.55 = 304,785.70 : x
  2. Step 2: Convert to fraction form
    439,458.94/658,506.55 = 304,785.70/x
  3. Step 3: Cross multiply
    439,458.94x = 658,506.55 × 304,785.70
  4. Step 4: Simplify right side
    439,458.94x = 200,703,379,796.34
  5. Step 5: Solve for x
    x = 200,703,379,796.34/439,458.94
  6. Step 6: Final answer
    x = 456,705.65

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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.