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Finding the Fourth Proportional to 414,901.60, 620,918.80 and 248,808.80

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Solution

The fourth proportional to 414,901.60, 620,918.80 and 248,808.80 is: 372,353.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,901.60 : 620,918.80 = 248,808.80 : x
  2. Step 2: Convert to fraction form
    414,901.60/620,918.80 = 248,808.80/x
  3. Step 3: Cross multiply
    414,901.60x = 620,918.80 × 248,808.80
  4. Step 4: Simplify right side
    414,901.60x = 154,490,061,525.44
  5. Step 5: Solve for x
    x = 154,490,061,525.44/414,901.60
  6. Step 6: Final answer
    x = 372,353.50

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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.