Home / 839,930.80-1,259,896.20-504,007.60

Finding the Fourth Proportional to 839,930.80, 1,259,896.20 and 504,007.60

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Solution

The fourth proportional to 839,930.80, 1,259,896.20 and 504,007.60 is: 756,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,930.80 : 1,259,896.20 = 504,007.60 : x
  2. Step 2: Convert to fraction form
    839,930.80/1,259,896.20 = 504,007.60/x
  3. Step 3: Cross multiply
    839,930.80x = 1,259,896.20 × 504,007.60
  4. Step 4: Simplify right side
    839,930.80x = 634,997,260,011.12
  5. Step 5: Solve for x
    x = 634,997,260,011.12/839,930.80
  6. Step 6: Final answer
    x = 756,011.40

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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.