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Finding the Fourth Proportional to 328,065.60, 492,098.40 and 321,844.80

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Solution

The fourth proportional to 328,065.60, 492,098.40 and 321,844.80 is: 482,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,065.60 : 492,098.40 = 321,844.80 : x
  2. Step 2: Convert to fraction form
    328,065.60/492,098.40 = 321,844.80/x
  3. Step 3: Cross multiply
    328,065.60x = 492,098.40 × 321,844.80
  4. Step 4: Simplify right side
    328,065.60x = 158,379,311,128.32
  5. Step 5: Solve for x
    x = 158,379,311,128.32/328,065.60
  6. Step 6: Final answer
    x = 482,767.20

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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.