Home / 831,828.71-1,147,927.08-449,855.50

Finding the Fourth Proportional to 831,828.71, 1,147,927.08 and 449,855.50

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Solution

The fourth proportional to 831,828.71, 1,147,927.08 and 449,855.50 is: 620,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,828.71 : 1,147,927.08 = 449,855.50 : x
  2. Step 2: Convert to fraction form
    831,828.71/1,147,927.08 = 449,855.50/x
  3. Step 3: Cross multiply
    831,828.71x = 1,147,927.08 × 449,855.50
  4. Step 4: Simplify right side
    831,828.71x = 516,401,302,548.03
  5. Step 5: Solve for x
    x = 516,401,302,548.03/831,828.71
  6. Step 6: Final answer
    x = 620,802.45

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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.