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Finding the Fourth Proportional to 487,696.95, 731,151.77 and 448,330.95

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Solution

The fourth proportional to 487,696.95, 731,151.77 and 448,330.95 is: 672,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,696.95 : 731,151.77 = 448,330.95 : x
  2. Step 2: Convert to fraction form
    487,696.95/731,151.77 = 448,330.95/x
  3. Step 3: Cross multiply
    487,696.95x = 731,151.77 × 448,330.95
  4. Step 4: Simplify right side
    487,696.95x = 327,797,965,396.63
  5. Step 5: Solve for x
    x = 327,797,965,396.63/487,696.95
  6. Step 6: Final answer
    x = 672,134.54

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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.