Home / 831,842.04-1,147,942.06-449,868.72

Finding the Fourth Proportional to 831,842.04, 1,147,942.06 and 449,868.72

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Solution

The fourth proportional to 831,842.04, 1,147,942.06 and 449,868.72 is: 620,818.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,842.04 : 1,147,942.06 = 449,868.72 : x
  2. Step 2: Convert to fraction form
    831,842.04/1,147,942.06 = 449,868.72/x
  3. Step 3: Cross multiply
    831,842.04x = 1,147,942.06 × 449,868.72
  4. Step 4: Simplify right side
    831,842.04x = 516,423,225,166.36
  5. Step 5: Solve for x
    x = 516,423,225,166.36/831,842.04
  6. Step 6: Final answer
    x = 620,818.86

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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.