Home / 780,020.63-1,170,030.94-189,044.63

Finding the Fourth Proportional to 780,020.63, 1,170,030.94 and 189,044.63

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Solution

The fourth proportional to 780,020.63, 1,170,030.94 and 189,044.63 is: 283,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,020.63 : 1,170,030.94 = 189,044.63 : x
  2. Step 2: Convert to fraction form
    780,020.63/1,170,030.94 = 189,044.63/x
  3. Step 3: Cross multiply
    780,020.63x = 1,170,030.94 × 189,044.63
  4. Step 4: Simplify right side
    780,020.63x = 221,188,059,818.09
  5. Step 5: Solve for x
    x = 221,188,059,818.09/780,020.63
  6. Step 6: Final answer
    x = 283,566.94

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Similar ratio
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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.