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Finding the Fourth Proportional to 637,553.85, 879,792.73 and 351,020.40

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Solution

The fourth proportional to 637,553.85, 879,792.73 and 351,020.40 is: 484,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,553.85 : 879,792.73 = 351,020.40 : x
  2. Step 2: Convert to fraction form
    637,553.85/879,792.73 = 351,020.40/x
  3. Step 3: Cross multiply
    637,553.85x = 879,792.73 × 351,020.40
  4. Step 4: Simplify right side
    637,553.85x = 308,825,196,001.69
  5. Step 5: Solve for x
    x = 308,825,196,001.69/637,553.85
  6. Step 6: Final answer
    x = 484,390.76

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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.