Home / 780,396.34-1,170,594.97-219,430.84

Finding the Fourth Proportional to 780,396.34, 1,170,594.97 and 219,430.84

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Solution

The fourth proportional to 780,396.34, 1,170,594.97 and 219,430.84 is: 329,146.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,396.34 : 1,170,594.97 = 219,430.84 : x
  2. Step 2: Convert to fraction form
    780,396.34/1,170,594.97 = 219,430.84/x
  3. Step 3: Cross multiply
    780,396.34x = 1,170,594.97 × 219,430.84
  4. Step 4: Simplify right side
    780,396.34x = 256,864,637,566.88
  5. Step 5: Solve for x
    x = 256,864,637,566.88/780,396.34
  6. Step 6: Final answer
    x = 329,146.39

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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.