Home / 985,379.05-1,477,609.17-511,937.29

Finding the Fourth Proportional to 985,379.05, 1,477,609.17 and 511,937.29

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Solution

The fourth proportional to 985,379.05, 1,477,609.17 and 511,937.29 is: 767,667.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,379.05 : 1,477,609.17 = 511,937.29 : x
  2. Step 2: Convert to fraction form
    985,379.05/1,477,609.17 = 511,937.29/x
  3. Step 3: Cross multiply
    985,379.05x = 1,477,609.17 × 511,937.29
  4. Step 4: Simplify right side
    985,379.05x = 756,443,234,168.95
  5. Step 5: Solve for x
    x = 756,443,234,168.95/985,379.05
  6. Step 6: Final answer
    x = 767,667.26

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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.