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Finding the Fourth Proportional to 414,903.60, 620,921.80 and 248,810.80

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Solution

The fourth proportional to 414,903.60, 620,921.80 and 248,810.80 is: 372,356.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,903.60 : 620,921.80 = 248,810.80 : x
  2. Step 2: Convert to fraction form
    414,903.60/620,921.80 = 248,810.80/x
  3. Step 3: Cross multiply
    414,903.60x = 620,921.80 × 248,810.80
  4. Step 4: Simplify right side
    414,903.60x = 154,492,049,795.44
  5. Step 5: Solve for x
    x = 154,492,049,795.44/414,903.60
  6. Step 6: Final answer
    x = 372,356.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.