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Finding the Fourth Proportional to 404,210.40, 606,814.80 and 254,450.40

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Solution

The fourth proportional to 404,210.40, 606,814.80 and 254,450.40 is: 381,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,210.40 : 606,814.80 = 254,450.40 : x
  2. Step 2: Convert to fraction form
    404,210.40/606,814.80 = 254,450.40/x
  3. Step 3: Cross multiply
    404,210.40x = 606,814.80 × 254,450.40
  4. Step 4: Simplify right side
    404,210.40x = 154,404,268,585.92
  5. Step 5: Solve for x
    x = 154,404,268,585.92/404,210.40
  6. Step 6: Final answer
    x = 381,989.85

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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.