Home / 780,449.56-1,170,656.08-359,725.43

Finding the Fourth Proportional to 780,449.56, 1,170,656.08 and 359,725.43

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Solution

The fourth proportional to 780,449.56, 1,170,656.08 and 359,725.43 is: 539,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,449.56 : 1,170,656.08 = 359,725.43 : x
  2. Step 2: Convert to fraction form
    780,449.56/1,170,656.08 = 359,725.43/x
  3. Step 3: Cross multiply
    780,449.56x = 1,170,656.08 × 359,725.43
  4. Step 4: Simplify right side
    780,449.56x = 421,114,761,760.11
  5. Step 5: Solve for x
    x = 421,114,761,760.11/780,449.56
  6. Step 6: Final answer
    x = 539,579.73

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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.