Home / 780,059.54-1,170,521.07-380,703.62

Finding the Fourth Proportional to 780,059.54, 1,170,521.07 and 380,703.62

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Solution

The fourth proportional to 780,059.54, 1,170,521.07 and 380,703.62 is: 571,266.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,059.54 : 1,170,521.07 = 380,703.62 : x
  2. Step 2: Convert to fraction form
    780,059.54/1,170,521.07 = 380,703.62/x
  3. Step 3: Cross multiply
    780,059.54x = 1,170,521.07 × 380,703.62
  4. Step 4: Simplify right side
    780,059.54x = 445,621,608,635.27
  5. Step 5: Solve for x
    x = 445,621,608,635.27/780,059.54
  6. Step 6: Final answer
    x = 571,266.15

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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.