Home / 855,013.70-1,282,520.55-223,991.30

Finding the Fourth Proportional to 855,013.70, 1,282,520.55 and 223,991.30

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Solution

The fourth proportional to 855,013.70, 1,282,520.55 and 223,991.30 is: 335,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,013.70 : 1,282,520.55 = 223,991.30 : x
  2. Step 2: Convert to fraction form
    855,013.70/1,282,520.55 = 223,991.30/x
  3. Step 3: Cross multiply
    855,013.70x = 1,282,520.55 × 223,991.30
  4. Step 4: Simplify right side
    855,013.70x = 287,273,445,271.22
  5. Step 5: Solve for x
    x = 287,273,445,271.22/855,013.70
  6. Step 6: Final answer
    x = 335,986.95

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Double scale
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Similar ratio
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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.