Home / 492,440.28-679,567.77-266,085.78

Finding the Fourth Proportional to 492,440.28, 679,567.77 and 266,085.78

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Solution

The fourth proportional to 492,440.28, 679,567.77 and 266,085.78 is: 367,198.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,440.28 : 679,567.77 = 266,085.78 : x
  2. Step 2: Convert to fraction form
    492,440.28/679,567.77 = 266,085.78/x
  3. Step 3: Cross multiply
    492,440.28x = 679,567.77 × 266,085.78
  4. Step 4: Simplify right side
    492,440.28x = 180,823,320,143.31
  5. Step 5: Solve for x
    x = 180,823,320,143.31/492,440.28
  6. Step 6: Final answer
    x = 367,198.48

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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.