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Finding the Fourth Proportional to 637,561.17, 879,834.33 and 351,080.55

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Solution

The fourth proportional to 637,561.17, 879,834.33 and 351,080.55 is: 484,491.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,561.17 : 879,834.33 = 351,080.55 : x
  2. Step 2: Convert to fraction form
    637,561.17/879,834.33 = 351,080.55/x
  3. Step 3: Cross multiply
    637,561.17x = 879,834.33 × 351,080.55
  4. Step 4: Simplify right side
    637,561.17x = 308,892,720,485.28
  5. Step 5: Solve for x
    x = 308,892,720,485.28/637,561.17
  6. Step 6: Final answer
    x = 484,491.11

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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.