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Finding the Fourth Proportional to 637,559.55, 879,832.09 and 351,078.93

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Solution

The fourth proportional to 637,559.55, 879,832.09 and 351,078.93 is: 484,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,559.55 : 879,832.09 = 351,078.93 : x
  2. Step 2: Convert to fraction form
    637,559.55/879,832.09 = 351,078.93/x
  3. Step 3: Cross multiply
    637,559.55x = 879,832.09 × 351,078.93
  4. Step 4: Simplify right side
    637,559.55x = 308,890,508,736.86
  5. Step 5: Solve for x
    x = 308,890,508,736.86/637,559.55
  6. Step 6: Final answer
    x = 484,488.87

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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.