Home / 945,564.88-1,304,912.40-515,868.64

Finding the Fourth Proportional to 945,564.88, 1,304,912.40 and 515,868.64

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Solution

The fourth proportional to 945,564.88, 1,304,912.40 and 515,868.64 is: 711,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,564.88 : 1,304,912.40 = 515,868.64 : x
  2. Step 2: Convert to fraction form
    945,564.88/1,304,912.40 = 515,868.64/x
  3. Step 3: Cross multiply
    945,564.88x = 1,304,912.40 × 515,868.64
  4. Step 4: Simplify right side
    945,564.88x = 673,163,385,107.14
  5. Step 5: Solve for x
    x = 673,163,385,107.14/945,564.88
  6. Step 6: Final answer
    x = 711,916.65

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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.