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Finding the Fourth Proportional to 513,666.70, 770,631.50 and 300,614.02

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Solution

The fourth proportional to 513,666.70, 770,631.50 and 300,614.02 is: 450,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,666.70 : 770,631.50 = 300,614.02 : x
  2. Step 2: Convert to fraction form
    513,666.70/770,631.50 = 300,614.02/x
  3. Step 3: Cross multiply
    513,666.70x = 770,631.50 × 300,614.02
  4. Step 4: Simplify right side
    513,666.70x = 231,662,631,978.59
  5. Step 5: Solve for x
    x = 231,662,631,978.59/513,666.70
  6. Step 6: Final answer
    x = 450,997.96

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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.