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Finding the Fourth Proportional to 454,330.60, 681,495.90 and 448,425.70

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Solution

The fourth proportional to 454,330.60, 681,495.90 and 448,425.70 is: 672,638.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,330.60 : 681,495.90 = 448,425.70 : x
  2. Step 2: Convert to fraction form
    454,330.60/681,495.90 = 448,425.70/x
  3. Step 3: Cross multiply
    454,330.60x = 681,495.90 × 448,425.70
  4. Step 4: Simplify right side
    454,330.60x = 305,600,276,004.63
  5. Step 5: Solve for x
    x = 305,600,276,004.63/454,330.60
  6. Step 6: Final answer
    x = 672,638.55

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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.