Home / 855,379.62-1,180,478.67-492,796.86

Finding the Fourth Proportional to 855,379.62, 1,180,478.67 and 492,796.86

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Solution

The fourth proportional to 855,379.62, 1,180,478.67 and 492,796.86 is: 680,091.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,379.62 : 1,180,478.67 = 492,796.86 : x
  2. Step 2: Convert to fraction form
    855,379.62/1,180,478.67 = 492,796.86/x
  3. Step 3: Cross multiply
    855,379.62x = 1,180,478.67 × 492,796.86
  4. Step 4: Simplify right side
    855,379.62x = 581,736,181,872.98
  5. Step 5: Solve for x
    x = 581,736,181,872.98/855,379.62
  6. Step 6: Final answer
    x = 680,091.23

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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.