Home / 1,267,145.81-1,900,725.14-320,517.44

Finding the Fourth Proportional to 1,267,145.81, 1,900,725.14 and 320,517.44

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Solution

The fourth proportional to 1,267,145.81, 1,900,725.14 and 320,517.44 is: 480,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,145.81 : 1,900,725.14 = 320,517.44 : x
  2. Step 2: Convert to fraction form
    1,267,145.81/1,900,725.14 = 320,517.44/x
  3. Step 3: Cross multiply
    1,267,145.81x = 1,900,725.14 × 320,517.44
  4. Step 4: Simplify right side
    1,267,145.81x = 609,215,554,441.83
  5. Step 5: Solve for x
    x = 609,215,554,441.83/1,267,145.81
  6. Step 6: Final answer
    x = 480,777.78

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Double scale
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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.