Home / 811,290.40-1,217,626.80-362,701.60

Finding the Fourth Proportional to 811,290.40, 1,217,626.80 and 362,701.60

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Solution

The fourth proportional to 811,290.40, 1,217,626.80 and 362,701.60 is: 544,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,290.40 : 1,217,626.80 = 362,701.60 : x
  2. Step 2: Convert to fraction form
    811,290.40/1,217,626.80 = 362,701.60/x
  3. Step 3: Cross multiply
    811,290.40x = 1,217,626.80 × 362,701.60
  4. Step 4: Simplify right side
    811,290.40x = 441,635,188,562.88
  5. Step 5: Solve for x
    x = 441,635,188,562.88/811,290.40
  6. Step 6: Final answer
    x = 544,361.41

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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.