Home / 780,408.84-1,170,613.76-219,443.36

Finding the Fourth Proportional to 780,408.84, 1,170,613.76 and 219,443.36

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Solution

The fourth proportional to 780,408.84, 1,170,613.76 and 219,443.36 is: 329,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,408.84 : 1,170,613.76 = 219,443.36 : x
  2. Step 2: Convert to fraction form
    780,408.84/1,170,613.76 = 219,443.36/x
  3. Step 3: Cross multiply
    780,408.84x = 1,170,613.76 × 219,443.36
  4. Step 4: Simplify right side
    780,408.84x = 256,883,416,756.63
  5. Step 5: Solve for x
    x = 256,883,416,756.63/780,408.84
  6. Step 6: Final answer
    x = 329,165.18

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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.