Home / 845,102-1,268,142.24-312,996.80

Finding the Fourth Proportional to 845,102, 1,268,142.24 and 312,996.80

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Solution

The fourth proportional to 845,102, 1,268,142.24 and 312,996.80 is: 469,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,102 : 1,268,142.24 = 312,996.80 : x
  2. Step 2: Convert to fraction form
    845,102/1,268,142.24 = 312,996.80/x
  3. Step 3: Cross multiply
    845,102x = 1,268,142.24 × 312,996.80
  4. Step 4: Simplify right side
    845,102x = 396,924,463,064.83
  5. Step 5: Solve for x
    x = 396,924,463,064.83/845,102
  6. Step 6: Final answer
    x = 469,676.40

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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.