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Finding the Fourth Proportional to 414,524.40, 620,911.80 and 370,201.20

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Solution

The fourth proportional to 414,524.40, 620,911.80 and 370,201.20 is: 554,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,524.40 : 620,911.80 = 370,201.20 : x
  2. Step 2: Convert to fraction form
    414,524.40/620,911.80 = 370,201.20/x
  3. Step 3: Cross multiply
    414,524.40x = 620,911.80 × 370,201.20
  4. Step 4: Simplify right side
    414,524.40x = 229,862,293,454.16
  5. Step 5: Solve for x
    x = 229,862,293,454.16/414,524.40
  6. Step 6: Final answer
    x = 554,520.54

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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.