Home / 1,228,915.71-1,695,209.09-769,232.30

Finding the Fourth Proportional to 1,228,915.71, 1,695,209.09 and 769,232.30

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Solution

The fourth proportional to 1,228,915.71, 1,695,209.09 and 769,232.30 is: 1,061,105.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,915.71 : 1,695,209.09 = 769,232.30 : x
  2. Step 2: Convert to fraction form
    1,228,915.71/1,695,209.09 = 769,232.30/x
  3. Step 3: Cross multiply
    1,228,915.71x = 1,695,209.09 × 769,232.30
  4. Step 4: Simplify right side
    1,228,915.71x = 1,304,009,574,959.40
  5. Step 5: Solve for x
    x = 1,304,009,574,959.40/1,228,915.71
  6. Step 6: Final answer
    x = 1,061,105.79

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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.