Home / 771,379.96-1,157,816.25-372,301.67

Finding the Fourth Proportional to 771,379.96, 1,157,816.25 and 372,301.67

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Solution

The fourth proportional to 771,379.96, 1,157,816.25 and 372,301.67 is: 558,812.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,379.96 : 1,157,816.25 = 372,301.67 : x
  2. Step 2: Convert to fraction form
    771,379.96/1,157,816.25 = 372,301.67/x
  3. Step 3: Cross multiply
    771,379.96x = 1,157,816.25 × 372,301.67
  4. Step 4: Simplify right side
    771,379.96x = 431,056,923,428.14
  5. Step 5: Solve for x
    x = 431,056,923,428.14/771,379.96
  6. Step 6: Final answer
    x = 558,812.71

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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.