Home / 712,419.90-1,068,297.66-412,986.12

Finding the Fourth Proportional to 712,419.90, 1,068,297.66 and 412,986.12

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Solution

The fourth proportional to 712,419.90, 1,068,297.66 and 412,986.12 is: 619,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,419.90 : 1,068,297.66 = 412,986.12 : x
  2. Step 2: Convert to fraction form
    712,419.90/1,068,297.66 = 412,986.12/x
  3. Step 3: Cross multiply
    712,419.90x = 1,068,297.66 × 412,986.12
  4. Step 4: Simplify right side
    712,419.90x = 441,192,105,608.48
  5. Step 5: Solve for x
    x = 441,192,105,608.48/712,419.90
  6. Step 6: Final answer
    x = 619,286.61

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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.