Home / 500,622.86-690,877.14-274,268.36

Finding the Fourth Proportional to 500,622.86, 690,877.14 and 274,268.36

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Solution

The fourth proportional to 500,622.86, 690,877.14 and 274,268.36 is: 378,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,622.86 : 690,877.14 = 274,268.36 : x
  2. Step 2: Convert to fraction form
    500,622.86/690,877.14 = 274,268.36/x
  3. Step 3: Cross multiply
    500,622.86x = 690,877.14 × 274,268.36
  4. Step 4: Simplify right side
    500,622.86x = 189,485,740,149.29
  5. Step 5: Solve for x
    x = 189,485,740,149.29/500,622.86
  6. Step 6: Final answer
    x = 378,499.98

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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.