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Finding the Fourth Proportional to 449,980.92, 620,950.86 and 248,738.04

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Solution

The fourth proportional to 449,980.92, 620,950.86 and 248,738.04 is: 343,245.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,980.92 : 620,950.86 = 248,738.04 : x
  2. Step 2: Convert to fraction form
    449,980.92/620,950.86 = 248,738.04/x
  3. Step 3: Cross multiply
    449,980.92x = 620,950.86 × 248,738.04
  4. Step 4: Simplify right side
    449,980.92x = 154,454,099,852.71
  5. Step 5: Solve for x
    x = 154,454,099,852.71/449,980.92
  6. Step 6: Final answer
    x = 343,245.89

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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.