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Finding the Fourth Proportional to 637,768.65, 880,120.64 and 351,288.73

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Solution

The fourth proportional to 637,768.65, 880,120.64 and 351,288.73 is: 484,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,768.65 : 880,120.64 = 351,288.73 : x
  2. Step 2: Convert to fraction form
    637,768.65/880,120.64 = 351,288.73/x
  3. Step 3: Cross multiply
    637,768.65x = 880,120.64 × 351,288.73
  4. Step 4: Simplify right side
    637,768.65x = 309,176,461,872.39
  5. Step 5: Solve for x
    x = 309,176,461,872.39/637,768.65
  6. Step 6: Final answer
    x = 484,778.39

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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.