Home / 840,511.80-1,259,611.29-360,164.61

Finding the Fourth Proportional to 840,511.80, 1,259,611.29 and 360,164.61

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Solution

The fourth proportional to 840,511.80, 1,259,611.29 and 360,164.61 is: 539,751.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,511.80 : 1,259,611.29 = 360,164.61 : x
  2. Step 2: Convert to fraction form
    840,511.80/1,259,611.29 = 360,164.61/x
  3. Step 3: Cross multiply
    840,511.80x = 1,259,611.29 × 360,164.61
  4. Step 4: Simplify right side
    840,511.80x = 453,667,409,014.45
  5. Step 5: Solve for x
    x = 453,667,409,014.45/840,511.80
  6. Step 6: Final answer
    x = 539,751.39

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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.