Home / 862,590.64-1,190,379.96-500,229.65

Finding the Fourth Proportional to 862,590.64, 1,190,379.96 and 500,229.65

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Solution

The fourth proportional to 862,590.64, 1,190,379.96 and 500,229.65 is: 690,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,590.64 : 1,190,379.96 = 500,229.65 : x
  2. Step 2: Convert to fraction form
    862,590.64/1,190,379.96 = 500,229.65/x
  3. Step 3: Cross multiply
    862,590.64x = 1,190,379.96 × 500,229.65
  4. Step 4: Simplify right side
    862,590.64x = 595,463,344,805.91
  5. Step 5: Solve for x
    x = 595,463,344,805.91/862,590.64
  6. Step 6: Final answer
    x = 690,319.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.