Home / 802,690.80-1,204,619.40-329,715.60

Finding the Fourth Proportional to 802,690.80, 1,204,619.40 and 329,715.60

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Solution

The fourth proportional to 802,690.80, 1,204,619.40 and 329,715.60 is: 494,812.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,690.80 : 1,204,619.40 = 329,715.60 : x
  2. Step 2: Convert to fraction form
    802,690.80/1,204,619.40 = 329,715.60/x
  3. Step 3: Cross multiply
    802,690.80x = 1,204,619.40 × 329,715.60
  4. Step 4: Simplify right side
    802,690.80x = 397,181,808,242.64
  5. Step 5: Solve for x
    x = 397,181,808,242.64/802,690.80
  6. Step 6: Final answer
    x = 494,812.96

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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.