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Finding the Fourth Proportional to 455,066.40, 682,599.60 and 329,095.20

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Solution

The fourth proportional to 455,066.40, 682,599.60 and 329,095.20 is: 493,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,066.40 : 682,599.60 = 329,095.20 : x
  2. Step 2: Convert to fraction form
    455,066.40/682,599.60 = 329,095.20/x
  3. Step 3: Cross multiply
    455,066.40x = 682,599.60 × 329,095.20
  4. Step 4: Simplify right side
    455,066.40x = 224,640,251,881.92
  5. Step 5: Solve for x
    x = 224,640,251,881.92/455,066.40
  6. Step 6: Final answer
    x = 493,642.80

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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.