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Finding the Fourth Proportional to 467,668.88, 644,952.66 and 306,465.38

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Solution

The fourth proportional to 467,668.88, 644,952.66 and 306,465.38 is: 422,640.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,668.88 : 644,952.66 = 306,465.38 : x
  2. Step 2: Convert to fraction form
    467,668.88/644,952.66 = 306,465.38/x
  3. Step 3: Cross multiply
    467,668.88x = 644,952.66 × 306,465.38
  4. Step 4: Simplify right side
    467,668.88x = 197,655,662,492.05
  5. Step 5: Solve for x
    x = 197,655,662,492.05/467,668.88
  6. Step 6: Final answer
    x = 422,640.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.