Home / 874,138.42-1,206,348.23-486,953.37

Finding the Fourth Proportional to 874,138.42, 1,206,348.23 and 486,953.37

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Solution

The fourth proportional to 874,138.42, 1,206,348.23 and 486,953.37 is: 672,016.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,138.42 : 1,206,348.23 = 486,953.37 : x
  2. Step 2: Convert to fraction form
    874,138.42/1,206,348.23 = 486,953.37/x
  3. Step 3: Cross multiply
    874,138.42x = 1,206,348.23 × 486,953.37
  4. Step 4: Simplify right side
    874,138.42x = 587,435,333,557.27
  5. Step 5: Solve for x
    x = 587,435,333,557.27/874,138.42
  6. Step 6: Final answer
    x = 672,016.38

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.