Home / 780,318.46-1,170,498.45-274,764.45

Finding the Fourth Proportional to 780,318.46, 1,170,498.45 and 274,764.45

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Solution

The fourth proportional to 780,318.46, 1,170,498.45 and 274,764.45 is: 412,153.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,318.46 : 1,170,498.45 = 274,764.45 : x
  2. Step 2: Convert to fraction form
    780,318.46/1,170,498.45 = 274,764.45/x
  3. Step 3: Cross multiply
    780,318.46x = 1,170,498.45 × 274,764.45
  4. Step 4: Simplify right side
    780,318.46x = 321,611,366,714.29
  5. Step 5: Solve for x
    x = 321,611,366,714.29/780,318.46
  6. Step 6: Final answer
    x = 412,153.99

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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.