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Finding the Fourth Proportional to 360,982.88, 497,043.68 and 320,626.52

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Solution

The fourth proportional to 360,982.88, 497,043.68 and 320,626.52 is: 441,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,982.88 : 497,043.68 = 320,626.52 : x
  2. Step 2: Convert to fraction form
    360,982.88/497,043.68 = 320,626.52/x
  3. Step 3: Cross multiply
    360,982.88x = 497,043.68 × 320,626.52
  4. Step 4: Simplify right side
    360,982.88x = 159,365,385,406.39
  5. Step 5: Solve for x
    x = 159,365,385,406.39/360,982.88
  6. Step 6: Final answer
    x = 441,476.30

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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.