Home / 500,918.16-691,241.40-274,519.92

Finding the Fourth Proportional to 500,918.16, 691,241.40 and 274,519.92

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Solution

The fourth proportional to 500,918.16, 691,241.40 and 274,519.92 is: 378,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,918.16 : 691,241.40 = 274,519.92 : x
  2. Step 2: Convert to fraction form
    500,918.16/691,241.40 = 274,519.92/x
  3. Step 3: Cross multiply
    500,918.16x = 691,241.40 × 274,519.92
  4. Step 4: Simplify right side
    500,918.16x = 189,759,533,828.69
  5. Step 5: Solve for x
    x = 189,759,533,828.69/500,918.16
  6. Step 6: Final answer
    x = 378,823.43

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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.