Home / 489,827.28-675,961.32-274,967.76

Finding the Fourth Proportional to 489,827.28, 675,961.32 and 274,967.76

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Solution

The fourth proportional to 489,827.28, 675,961.32 and 274,967.76 is: 379,455.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,827.28 : 675,961.32 = 274,967.76 : x
  2. Step 2: Convert to fraction form
    489,827.28/675,961.32 = 274,967.76/x
  3. Step 3: Cross multiply
    489,827.28x = 675,961.32 × 274,967.76
  4. Step 4: Simplify right side
    489,827.28x = 185,867,570,007.04
  5. Step 5: Solve for x
    x = 185,867,570,007.04/489,827.28
  6. Step 6: Final answer
    x = 379,455.33

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1.5x scale

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.