Home / 786,049.38-1,179,323.42-280,599.26

Finding the Fourth Proportional to 786,049.38, 1,179,323.42 and 280,599.26

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Solution

The fourth proportional to 786,049.38, 1,179,323.42 and 280,599.26 is: 420,987.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,049.38 : 1,179,323.42 = 280,599.26 : x
  2. Step 2: Convert to fraction form
    786,049.38/1,179,323.42 = 280,599.26/x
  3. Step 3: Cross multiply
    786,049.38x = 1,179,323.42 × 280,599.26
  4. Step 4: Simplify right side
    786,049.38x = 330,917,271,653.06
  5. Step 5: Solve for x
    x = 330,917,271,653.06/786,049.38
  6. Step 6: Final answer
    x = 420,987.89

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1.5x scale

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.