Home / 789,980.04-1,185,092.91-257,376.96

Finding the Fourth Proportional to 789,980.04, 1,185,092.91 and 257,376.96

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Solution

The fourth proportional to 789,980.04, 1,185,092.91 and 257,376.96 is: 386,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,980.04 : 1,185,092.91 = 257,376.96 : x
  2. Step 2: Convert to fraction form
    789,980.04/1,185,092.91 = 257,376.96/x
  3. Step 3: Cross multiply
    789,980.04x = 1,185,092.91 × 257,376.96
  4. Step 4: Simplify right side
    789,980.04x = 305,015,610,493.35
  5. Step 5: Solve for x
    x = 305,015,610,493.35/789,980.04
  6. Step 6: Final answer
    x = 386,105.46

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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.