Home / 767,131.40-1,150,815.36-261,574.16

Finding the Fourth Proportional to 767,131.40, 1,150,815.36 and 261,574.16

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Solution

The fourth proportional to 767,131.40, 1,150,815.36 and 261,574.16 is: 392,401.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,131.40 : 1,150,815.36 = 261,574.16 : x
  2. Step 2: Convert to fraction form
    767,131.40/1,150,815.36 = 261,574.16/x
  3. Step 3: Cross multiply
    767,131.40x = 1,150,815.36 × 261,574.16
  4. Step 4: Simplify right side
    767,131.40x = 301,023,561,107.10
  5. Step 5: Solve for x
    x = 301,023,561,107.10/767,131.40
  6. Step 6: Final answer
    x = 392,401.56

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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.