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Finding the Fourth Proportional to 637,489.76, 879,736.82 and 351,010.67

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Solution

The fourth proportional to 637,489.76, 879,736.82 and 351,010.67 is: 484,395.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,489.76 : 879,736.82 = 351,010.67 : x
  2. Step 2: Convert to fraction form
    637,489.76/879,736.82 = 351,010.67/x
  3. Step 3: Cross multiply
    637,489.76x = 879,736.82 × 351,010.67
  4. Step 4: Simplify right side
    637,489.76x = 308,797,004,458.13
  5. Step 5: Solve for x
    x = 308,797,004,458.13/637,489.76
  6. Step 6: Final answer
    x = 484,395.24

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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.