Home / 780,304.26-1,170,456.36-219,338.76

Finding the Fourth Proportional to 780,304.26, 1,170,456.36 and 219,338.76

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Solution

The fourth proportional to 780,304.26, 1,170,456.36 and 219,338.76 is: 329,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,304.26 : 1,170,456.36 = 219,338.76 : x
  2. Step 2: Convert to fraction form
    780,304.26/1,170,456.36 = 219,338.76/x
  3. Step 3: Cross multiply
    780,304.26x = 1,170,456.36 × 219,338.76
  4. Step 4: Simplify right side
    780,304.26x = 256,726,446,636.51
  5. Step 5: Solve for x
    x = 256,726,446,636.51/780,304.26
  6. Step 6: Final answer
    x = 329,008.13

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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.