Home / 744,613.26-1,116,735.36-212,138.90

Finding the Fourth Proportional to 744,613.26, 1,116,735.36 and 212,138.90

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Solution

The fourth proportional to 744,613.26, 1,116,735.36 and 212,138.90 is: 318,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,613.26 : 1,116,735.36 = 212,138.90 : x
  2. Step 2: Convert to fraction form
    744,613.26/1,116,735.36 = 212,138.90/x
  3. Step 3: Cross multiply
    744,613.26x = 1,116,735.36 × 212,138.90
  4. Step 4: Simplify right side
    744,613.26x = 236,903,010,861.50
  5. Step 5: Solve for x
    x = 236,903,010,861.50/744,613.26
  6. Step 6: Final answer
    x = 318,155.78

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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.