Home / 831,958.20-1,148,102.40-449,985

Finding the Fourth Proportional to 831,958.20, 1,148,102.40 and 449,985

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Solution

The fourth proportional to 831,958.20, 1,148,102.40 and 449,985 is: 620,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,958.20 : 1,148,102.40 = 449,985 : x
  2. Step 2: Convert to fraction form
    831,958.20/1,148,102.40 = 449,985/x
  3. Step 3: Cross multiply
    831,958.20x = 1,148,102.40 × 449,985
  4. Step 4: Simplify right side
    831,958.20x = 516,628,858,464.00
  5. Step 5: Solve for x
    x = 516,628,858,464.00/831,958.20
  6. Step 6: Final answer
    x = 620,979.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.