Home / 500,426.16-690,562.40-274,027.92

Finding the Fourth Proportional to 500,426.16, 690,562.40 and 274,027.92

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Solution

The fourth proportional to 500,426.16, 690,562.40 and 274,027.92 is: 378,144.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,426.16 : 690,562.40 = 274,027.92 : x
  2. Step 2: Convert to fraction form
    500,426.16/690,562.40 = 274,027.92/x
  3. Step 3: Cross multiply
    500,426.16x = 690,562.40 × 274,027.92
  4. Step 4: Simplify right side
    500,426.16x = 189,233,378,102.21
  5. Step 5: Solve for x
    x = 189,233,378,102.21/500,426.16
  6. Step 6: Final answer
    x = 378,144.46

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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.