Home / 787,814.64-1,085,667.30-572,613.84

Finding the Fourth Proportional to 787,814.64, 1,085,667.30 and 572,613.84

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Solution

The fourth proportional to 787,814.64, 1,085,667.30 and 572,613.84 is: 789,104.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,814.64 : 1,085,667.30 = 572,613.84 : x
  2. Step 2: Convert to fraction form
    787,814.64/1,085,667.30 = 572,613.84/x
  3. Step 3: Cross multiply
    787,814.64x = 1,085,667.30 × 572,613.84
  4. Step 4: Simplify right side
    787,814.64x = 621,668,121,615.43
  5. Step 5: Solve for x
    x = 621,668,121,615.43/787,814.64
  6. Step 6: Final answer
    x = 789,104.56

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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.