Home / 780,312.35-1,170,468.50-219,346.85

Finding the Fourth Proportional to 780,312.35, 1,170,468.50 and 219,346.85

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Solution

The fourth proportional to 780,312.35, 1,170,468.50 and 219,346.85 is: 329,020.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,312.35 : 1,170,468.50 = 219,346.85 : x
  2. Step 2: Convert to fraction form
    780,312.35/1,170,468.50 = 219,346.85/x
  3. Step 3: Cross multiply
    780,312.35x = 1,170,468.50 × 219,346.85
  4. Step 4: Simplify right side
    780,312.35x = 256,738,571,550.15
  5. Step 5: Solve for x
    x = 256,738,571,550.15/780,312.35
  6. Step 6: Final answer
    x = 329,020.26

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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.