Home / 831,829.09-1,147,927.59-449,855.87

Finding the Fourth Proportional to 831,829.09, 1,147,927.59 and 449,855.87

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Solution

The fourth proportional to 831,829.09, 1,147,927.59 and 449,855.87 is: 620,802.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,829.09 : 1,147,927.59 = 449,855.87 : x
  2. Step 2: Convert to fraction form
    831,829.09/1,147,927.59 = 449,855.87/x
  3. Step 3: Cross multiply
    831,829.09x = 1,147,927.59 × 449,855.87
  4. Step 4: Simplify right side
    831,829.09x = 516,401,964,696.45
  5. Step 5: Solve for x
    x = 516,401,964,696.45/831,829.09
  6. Step 6: Final answer
    x = 620,802.96

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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.