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Finding the Fourth Proportional to 637,543, 879,809.34 and 351,062.47

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Solution

The fourth proportional to 637,543, 879,809.34 and 351,062.47 is: 484,466.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,543 : 879,809.34 = 351,062.47 : x
  2. Step 2: Convert to fraction form
    637,543/879,809.34 = 351,062.47/x
  3. Step 3: Cross multiply
    637,543x = 879,809.34 × 351,062.47
  4. Step 4: Simplify right side
    637,543x = 308,868,040,029.47
  5. Step 5: Solve for x
    x = 308,868,040,029.47/637,543
  6. Step 6: Final answer
    x = 484,466.21

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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.