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Finding the Fourth Proportional to 489,673.28, 675,497.28 and 326,610.56

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Solution

The fourth proportional to 489,673.28, 675,497.28 and 326,610.56 is: 450,554.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,673.28 : 675,497.28 = 326,610.56 : x
  2. Step 2: Convert to fraction form
    489,673.28/675,497.28 = 326,610.56/x
  3. Step 3: Cross multiply
    489,673.28x = 675,497.28 × 326,610.56
  4. Step 4: Simplify right side
    489,673.28x = 220,624,544,899.28
  5. Step 5: Solve for x
    x = 220,624,544,899.28/489,673.28
  6. Step 6: Final answer
    x = 450,554.59

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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.