Home / 495,201.44-683,420.28-280,379.36

Finding the Fourth Proportional to 495,201.44, 683,420.28 and 280,379.36

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Solution

The fourth proportional to 495,201.44, 683,420.28 and 280,379.36 is: 386,947.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,201.44 : 683,420.28 = 280,379.36 : x
  2. Step 2: Convert to fraction form
    495,201.44/683,420.28 = 280,379.36/x
  3. Step 3: Cross multiply
    495,201.44x = 683,420.28 × 280,379.36
  4. Step 4: Simplify right side
    495,201.44x = 191,616,940,717.42
  5. Step 5: Solve for x
    x = 191,616,940,717.42/495,201.44
  6. Step 6: Final answer
    x = 386,947.46

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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.