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Finding the Fourth Proportional to 434,879.65, 651,689.92 and 299,805.07

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Solution

The fourth proportional to 434,879.65, 651,689.92 and 299,805.07 is: 449,273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,879.65 : 651,689.92 = 299,805.07 : x
  2. Step 2: Convert to fraction form
    434,879.65/651,689.92 = 299,805.07/x
  3. Step 3: Cross multiply
    434,879.65x = 651,689.92 × 299,805.07
  4. Step 4: Simplify right side
    434,879.65x = 195,379,942,083.89
  5. Step 5: Solve for x
    x = 195,379,942,083.89/434,879.65
  6. Step 6: Final answer
    x = 449,273.59

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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.