Home / 858,308.60-1,286,541.30-325,623.80

Finding the Fourth Proportional to 858,308.60, 1,286,541.30 and 325,623.80

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Solution

The fourth proportional to 858,308.60, 1,286,541.30 and 325,623.80 is: 488,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,308.60 : 1,286,541.30 = 325,623.80 : x
  2. Step 2: Convert to fraction form
    858,308.60/1,286,541.30 = 325,623.80/x
  3. Step 3: Cross multiply
    858,308.60x = 1,286,541.30 × 325,623.80
  4. Step 4: Simplify right side
    858,308.60x = 418,928,466,962.94
  5. Step 5: Solve for x
    x = 418,928,466,962.94/858,308.60
  6. Step 6: Final answer
    x = 488,086.06

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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.