Home / 453,742.20-680,613.30-418,312.80

Finding the Fourth Proportional to 453,742.20, 680,613.30 and 418,312.80

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Solution

The fourth proportional to 453,742.20, 680,613.30 and 418,312.80 is: 627,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,742.20 : 680,613.30 = 418,312.80 : x
  2. Step 2: Convert to fraction form
    453,742.20/680,613.30 = 418,312.80/x
  3. Step 3: Cross multiply
    453,742.20x = 680,613.30 × 418,312.80
  4. Step 4: Simplify right side
    453,742.20x = 284,709,255,240.24
  5. Step 5: Solve for x
    x = 284,709,255,240.24/453,742.20
  6. Step 6: Final answer
    x = 627,469.20

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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.