Home / 780,051.74-1,170,121.38-219,042.50

Finding the Fourth Proportional to 780,051.74, 1,170,121.38 and 219,042.50

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Solution

The fourth proportional to 780,051.74, 1,170,121.38 and 219,042.50 is: 328,576.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,051.74 : 1,170,121.38 = 219,042.50 : x
  2. Step 2: Convert to fraction form
    780,051.74/1,170,121.38 = 219,042.50/x
  3. Step 3: Cross multiply
    780,051.74x = 1,170,121.38 × 219,042.50
  4. Step 4: Simplify right side
    780,051.74x = 256,306,312,378.65
  5. Step 5: Solve for x
    x = 256,306,312,378.65/780,051.74
  6. Step 6: Final answer
    x = 328,576.04

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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.