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Finding the Fourth Proportional to 637,364.73, 879,282.23 and 395,161.77

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Solution

The fourth proportional to 637,364.73, 879,282.23 and 395,161.77 is: 545,148.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,364.73 : 879,282.23 = 395,161.77 : x
  2. Step 2: Convert to fraction form
    637,364.73/879,282.23 = 395,161.77/x
  3. Step 3: Cross multiply
    637,364.73x = 879,282.23 × 395,161.77
  4. Step 4: Simplify right side
    637,364.73x = 347,458,720,360.54
  5. Step 5: Solve for x
    x = 347,458,720,360.54/637,364.73
  6. Step 6: Final answer
    x = 545,148.96

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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.