Home / 839,911.70-1,259,867.55-804,919.70

Finding the Fourth Proportional to 839,911.70, 1,259,867.55 and 804,919.70

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Solution

The fourth proportional to 839,911.70, 1,259,867.55 and 804,919.70 is: 1,207,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,911.70 : 1,259,867.55 = 804,919.70 : x
  2. Step 2: Convert to fraction form
    839,911.70/1,259,867.55 = 804,919.70/x
  3. Step 3: Cross multiply
    839,911.70x = 1,259,867.55 × 804,919.70
  4. Step 4: Simplify right side
    839,911.70x = 1,014,092,210,385.74
  5. Step 5: Solve for x
    x = 1,014,092,210,385.74/839,911.70
  6. Step 6: Final answer
    x = 1,207,379.55

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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.