Home / 769,112.68-1,153,859.34-319,698.76

Finding the Fourth Proportional to 769,112.68, 1,153,859.34 and 319,698.76

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Solution

The fourth proportional to 769,112.68, 1,153,859.34 and 319,698.76 is: 479,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,112.68 : 1,153,859.34 = 319,698.76 : x
  2. Step 2: Convert to fraction form
    769,112.68/1,153,859.34 = 319,698.76/x
  3. Step 3: Cross multiply
    769,112.68x = 1,153,859.34 × 319,698.76
  4. Step 4: Simplify right side
    769,112.68x = 368,887,400,212.42
  5. Step 5: Solve for x
    x = 368,887,400,212.42/769,112.68
  6. Step 6: Final answer
    x = 479,627.25

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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.