Home / 915,131.96-1,372,229.86-382,507.64

Finding the Fourth Proportional to 915,131.96, 1,372,229.86 and 382,507.64

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Solution

The fourth proportional to 915,131.96, 1,372,229.86 and 382,507.64 is: 573,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,131.96 : 1,372,229.86 = 382,507.64 : x
  2. Step 2: Convert to fraction form
    915,131.96/1,372,229.86 = 382,507.64/x
  3. Step 3: Cross multiply
    915,131.96x = 1,372,229.86 × 382,507.64
  4. Step 4: Simplify right side
    915,131.96x = 524,888,405,286.13
  5. Step 5: Solve for x
    x = 524,888,405,286.13/915,131.96
  6. Step 6: Final answer
    x = 573,565.81

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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.