Home / 500,780.96-691,740.24-373,235.12

Finding the Fourth Proportional to 500,780.96, 691,740.24 and 373,235.12

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Solution

The fourth proportional to 500,780.96, 691,740.24 and 373,235.12 is: 515,558.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,780.96 : 691,740.24 = 373,235.12 : x
  2. Step 2: Convert to fraction form
    500,780.96/691,740.24 = 373,235.12/x
  3. Step 3: Cross multiply
    500,780.96x = 691,740.24 × 373,235.12
  4. Step 4: Simplify right side
    500,780.96x = 258,181,751,485.23
  5. Step 5: Solve for x
    x = 258,181,751,485.23/500,780.96
  6. Step 6: Final answer
    x = 515,558.24

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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.