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Finding the Fourth Proportional to 489,116.76, 675,037.28 and 325,764.24

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Solution

The fourth proportional to 489,116.76, 675,037.28 and 325,764.24 is: 449,592.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,116.76 : 675,037.28 = 325,764.24 : x
  2. Step 2: Convert to fraction form
    489,116.76/675,037.28 = 325,764.24/x
  3. Step 3: Cross multiply
    489,116.76x = 675,037.28 × 325,764.24
  4. Step 4: Simplify right side
    489,116.76x = 219,903,006,490.87
  5. Step 5: Solve for x
    x = 219,903,006,490.87/489,116.76
  6. Step 6: Final answer
    x = 449,592.05

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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.