Home / 1,302,706.20-1,797,217.30-812,387.28

Finding the Fourth Proportional to 1,302,706.20, 1,797,217.30 and 812,387.28

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Solution

The fourth proportional to 1,302,706.20, 1,797,217.30 and 812,387.28 is: 1,120,771.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,706.20 : 1,797,217.30 = 812,387.28 : x
  2. Step 2: Convert to fraction form
    1,302,706.20/1,797,217.30 = 812,387.28/x
  3. Step 3: Cross multiply
    1,302,706.20x = 1,797,217.30 × 812,387.28
  4. Step 4: Simplify right side
    1,302,706.20x = 1,460,036,473,915.94
  5. Step 5: Solve for x
    x = 1,460,036,473,915.94/1,302,706.20
  6. Step 6: Final answer
    x = 1,120,771.88

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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.