Home / 780,714.88-1,170,168.48-359,105.92

Finding the Fourth Proportional to 780,714.88, 1,170,168.48 and 359,105.92

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Solution

The fourth proportional to 780,714.88, 1,170,168.48 and 359,105.92 is: 538,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,714.88 : 1,170,168.48 = 359,105.92 : x
  2. Step 2: Convert to fraction form
    780,714.88/1,170,168.48 = 359,105.92/x
  3. Step 3: Cross multiply
    780,714.88x = 1,170,168.48 × 359,105.92
  4. Step 4: Simplify right side
    780,714.88x = 420,214,428,565.40
  5. Step 5: Solve for x
    x = 420,214,428,565.40/780,714.88
  6. Step 6: Final answer
    x = 538,243.14

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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.