Home / 811,076.40-1,217,305.80-362,487.60

Finding the Fourth Proportional to 811,076.40, 1,217,305.80 and 362,487.60

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Solution

The fourth proportional to 811,076.40, 1,217,305.80 and 362,487.60 is: 544,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,076.40 : 1,217,305.80 = 362,487.60 : x
  2. Step 2: Convert to fraction form
    811,076.40/1,217,305.80 = 362,487.60/x
  3. Step 3: Cross multiply
    811,076.40x = 1,217,305.80 × 362,487.60
  4. Step 4: Simplify right side
    811,076.40x = 441,258,257,908.08
  5. Step 5: Solve for x
    x = 441,258,257,908.08/811,076.40
  6. Step 6: Final answer
    x = 544,040.31

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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.