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Finding the Fourth Proportional to 490,833.32, 735,498.45 and 330,314.18

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Solution

The fourth proportional to 490,833.32, 735,498.45 and 330,314.18 is: 494,965.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,833.32 : 735,498.45 = 330,314.18 : x
  2. Step 2: Convert to fraction form
    490,833.32/735,498.45 = 330,314.18/x
  3. Step 3: Cross multiply
    490,833.32x = 735,498.45 × 330,314.18
  4. Step 4: Simplify right side
    490,833.32x = 242,945,563,725.53
  5. Step 5: Solve for x
    x = 242,945,563,725.53/490,833.32
  6. Step 6: Final answer
    x = 494,965.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.