Home / 454,504.20-681,756.30-384,520.20

Finding the Fourth Proportional to 454,504.20, 681,756.30 and 384,520.20

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Solution

The fourth proportional to 454,504.20, 681,756.30 and 384,520.20 is: 576,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,504.20 : 681,756.30 = 384,520.20 : x
  2. Step 2: Convert to fraction form
    454,504.20/681,756.30 = 384,520.20/x
  3. Step 3: Cross multiply
    454,504.20x = 681,756.30 × 384,520.20
  4. Step 4: Simplify right side
    454,504.20x = 262,149,068,827.26
  5. Step 5: Solve for x
    x = 262,149,068,827.26/454,504.20
  6. Step 6: Final answer
    x = 576,780.30

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Double scale
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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.