Home / 509,435.03-703,027.62-280,013.54

Finding the Fourth Proportional to 509,435.03, 703,027.62 and 280,013.54

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Solution

The fourth proportional to 509,435.03, 703,027.62 and 280,013.54 is: 386,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,435.03 : 703,027.62 = 280,013.54 : x
  2. Step 2: Convert to fraction form
    509,435.03/703,027.62 = 280,013.54/x
  3. Step 3: Cross multiply
    509,435.03x = 703,027.62 × 280,013.54
  4. Step 4: Simplify right side
    509,435.03x = 196,857,249,078.84
  5. Step 5: Solve for x
    x = 196,857,249,078.84/509,435.03
  6. Step 6: Final answer
    x = 386,422.68

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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.