Home / 862,590.45-1,190,379.70-500,229.46

Finding the Fourth Proportional to 862,590.45, 1,190,379.70 and 500,229.46

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Solution

The fourth proportional to 862,590.45, 1,190,379.70 and 500,229.46 is: 690,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,590.45 : 1,190,379.70 = 500,229.46 : x
  2. Step 2: Convert to fraction form
    862,590.45/1,190,379.70 = 500,229.46/x
  3. Step 3: Cross multiply
    862,590.45x = 1,190,379.70 × 500,229.46
  4. Step 4: Simplify right side
    862,590.45x = 595,462,994,525.96
  5. Step 5: Solve for x
    x = 595,462,994,525.96/862,590.45
  6. Step 6: Final answer
    x = 690,319.48

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1.5x scale

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.