Home / 767,671.58-1,059,388.62-428,161.70

Finding the Fourth Proportional to 767,671.58, 1,059,388.62 and 428,161.70

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Solution

The fourth proportional to 767,671.58, 1,059,388.62 and 428,161.70 is: 590,864.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,671.58 : 1,059,388.62 = 428,161.70 : x
  2. Step 2: Convert to fraction form
    767,671.58/1,059,388.62 = 428,161.70/x
  3. Step 3: Cross multiply
    767,671.58x = 1,059,388.62 × 428,161.70
  4. Step 4: Simplify right side
    767,671.58x = 453,589,632,499.85
  5. Step 5: Solve for x
    x = 453,589,632,499.85/767,671.58
  6. Step 6: Final answer
    x = 590,864.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.