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Finding the Fourth Proportional to 434,889.54, 651,704.73 and 299,814.96

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Solution

The fourth proportional to 434,889.54, 651,704.73 and 299,814.96 is: 449,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,889.54 : 651,704.73 = 299,814.96 : x
  2. Step 2: Convert to fraction form
    434,889.54/651,704.73 = 299,814.96/x
  3. Step 3: Cross multiply
    434,889.54x = 651,704.73 × 299,814.96
  4. Step 4: Simplify right side
    434,889.54x = 195,390,827,556.76
  5. Step 5: Solve for x
    x = 195,390,827,556.76/434,889.54
  6. Step 6: Final answer
    x = 449,288.40

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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.