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Finding the Fourth Proportional to 448,042.40, 672,063.60 and 403,805.60

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Solution

The fourth proportional to 448,042.40, 672,063.60 and 403,805.60 is: 605,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,042.40 : 672,063.60 = 403,805.60 : x
  2. Step 2: Convert to fraction form
    448,042.40/672,063.60 = 403,805.60/x
  3. Step 3: Cross multiply
    448,042.40x = 672,063.60 × 403,805.60
  4. Step 4: Simplify right side
    448,042.40x = 271,383,045,236.16
  5. Step 5: Solve for x
    x = 271,383,045,236.16/448,042.40
  6. Step 6: Final answer
    x = 605,708.40

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Similar ratio
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1.5x scale

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.