Home / 839,919.90-1,258,895.70-629,311.80

Finding the Fourth Proportional to 839,919.90, 1,258,895.70 and 629,311.80

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Solution

The fourth proportional to 839,919.90, 1,258,895.70 and 629,311.80 is: 943,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,919.90 : 1,258,895.70 = 629,311.80 : x
  2. Step 2: Convert to fraction form
    839,919.90/1,258,895.70 = 629,311.80/x
  3. Step 3: Cross multiply
    839,919.90x = 1,258,895.70 × 629,311.80
  4. Step 4: Simplify right side
    839,919.90x = 792,237,918,979.26
  5. Step 5: Solve for x
    x = 792,237,918,979.26/839,919.90
  6. Step 6: Final answer
    x = 943,230.32

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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.