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Finding the Fourth Proportional to 658,754.92, 987,379.66 and 299,199.96

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Solution

The fourth proportional to 658,754.92, 987,379.66 and 299,199.96 is: 448,458.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,754.92 : 987,379.66 = 299,199.96 : x
  2. Step 2: Convert to fraction form
    658,754.92/987,379.66 = 299,199.96/x
  3. Step 3: Cross multiply
    658,754.92x = 987,379.66 × 299,199.96
  4. Step 4: Simplify right side
    658,754.92x = 295,423,954,776.81
  5. Step 5: Solve for x
    x = 295,423,954,776.81/658,754.92
  6. Step 6: Final answer
    x = 448,458.06

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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.