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Finding the Fourth Proportional to 637,552.85, 879,791.36 and 351,019.40

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Solution

The fourth proportional to 637,552.85, 879,791.36 and 351,019.40 is: 484,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,552.85 : 879,791.36 = 351,019.40 : x
  2. Step 2: Convert to fraction form
    637,552.85/879,791.36 = 351,019.40/x
  3. Step 3: Cross multiply
    637,552.85x = 879,791.36 × 351,019.40
  4. Step 4: Simplify right side
    637,552.85x = 308,823,829,158.33
  5. Step 5: Solve for x
    x = 308,823,829,158.33/637,552.85
  6. Step 6: Final answer
    x = 484,389.38

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1.5x scale

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.