Home / 826,762.05-1,240,310.75-258,120.18

Finding the Fourth Proportional to 826,762.05, 1,240,310.75 and 258,120.18

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Solution

The fourth proportional to 826,762.05, 1,240,310.75 and 258,120.18 is: 387,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,762.05 : 1,240,310.75 = 258,120.18 : x
  2. Step 2: Convert to fraction form
    826,762.05/1,240,310.75 = 258,120.18/x
  3. Step 3: Cross multiply
    826,762.05x = 1,240,310.75 × 258,120.18
  4. Step 4: Simplify right side
    826,762.05x = 320,149,232,755.33
  5. Step 5: Solve for x
    x = 320,149,232,755.33/826,762.05
  6. Step 6: Final answer
    x = 387,232.62

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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.