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Finding the Fourth Proportional to 453,771.10, 680,915.85 and 313,630.30

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Solution

The fourth proportional to 453,771.10, 680,915.85 and 313,630.30 is: 470,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,771.10 : 680,915.85 = 313,630.30 : x
  2. Step 2: Convert to fraction form
    453,771.10/680,915.85 = 313,630.30/x
  3. Step 3: Cross multiply
    453,771.10x = 680,915.85 × 313,630.30
  4. Step 4: Simplify right side
    453,771.10x = 213,555,842,310.26
  5. Step 5: Solve for x
    x = 213,555,842,310.26/453,771.10
  6. Step 6: Final answer
    x = 470,624.60

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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.