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Finding the Fourth Proportional to 447,510.69, 671,163.49 and 127,656.49

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Solution

The fourth proportional to 447,510.69, 671,163.49 and 127,656.49 is: 191,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,510.69 : 671,163.49 = 127,656.49 : x
  2. Step 2: Convert to fraction form
    447,510.69/671,163.49 = 127,656.49/x
  3. Step 3: Cross multiply
    447,510.69x = 671,163.49 × 127,656.49
  4. Step 4: Simplify right side
    447,510.69x = 85,678,375,349.55
  5. Step 5: Solve for x
    x = 85,678,375,349.55/447,510.69
  6. Step 6: Final answer
    x = 191,455.48

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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.