Home / 500,425.24-690,603.42-274,083.16

Finding the Fourth Proportional to 500,425.24, 690,603.42 and 274,083.16

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Solution

The fourth proportional to 500,425.24, 690,603.42 and 274,083.16 is: 378,243.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,425.24 : 690,603.42 = 274,083.16 : x
  2. Step 2: Convert to fraction form
    500,425.24/690,603.42 = 274,083.16/x
  3. Step 3: Cross multiply
    500,425.24x = 690,603.42 × 274,083.16
  4. Step 4: Simplify right side
    500,425.24x = 189,282,767,660.41
  5. Step 5: Solve for x
    x = 189,282,767,660.41/500,425.24
  6. Step 6: Final answer
    x = 378,243.85

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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.