Home / 831,659.52-1,147,690.80-449,686.56

Finding the Fourth Proportional to 831,659.52, 1,147,690.80 and 449,686.56

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Solution

The fourth proportional to 831,659.52, 1,147,690.80 and 449,686.56 is: 620,567.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,659.52 : 1,147,690.80 = 449,686.56 : x
  2. Step 2: Convert to fraction form
    831,659.52/1,147,690.80 = 449,686.56/x
  3. Step 3: Cross multiply
    831,659.52x = 1,147,690.80 × 449,686.56
  4. Step 4: Simplify right side
    831,659.52x = 516,101,127,795.65
  5. Step 5: Solve for x
    x = 516,101,127,795.65/831,659.52
  6. Step 6: Final answer
    x = 620,567.81

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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.