Home / 787,536.42-1,086,743.88-443,354.64

Finding the Fourth Proportional to 787,536.42, 1,086,743.88 and 443,354.64

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Solution

The fourth proportional to 787,536.42, 1,086,743.88 and 443,354.64 is: 611,797.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,536.42 : 1,086,743.88 = 443,354.64 : x
  2. Step 2: Convert to fraction form
    787,536.42/1,086,743.88 = 443,354.64/x
  3. Step 3: Cross multiply
    787,536.42x = 1,086,743.88 × 443,354.64
  4. Step 4: Simplify right side
    787,536.42x = 481,812,941,689.60
  5. Step 5: Solve for x
    x = 481,812,941,689.60/787,536.42
  6. Step 6: Final answer
    x = 611,797.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.