Home / 1,297,689.82-1,777,805.20-1,249,172.44

Finding the Fourth Proportional to 1,297,689.82, 1,777,805.20 and 1,249,172.44

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Solution

The fourth proportional to 1,297,689.82, 1,777,805.20 and 1,249,172.44 is: 1,711,337.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,689.82 : 1,777,805.20 = 1,249,172.44 : x
  2. Step 2: Convert to fraction form
    1,297,689.82/1,777,805.20 = 1,249,172.44/x
  3. Step 3: Cross multiply
    1,297,689.82x = 1,777,805.20 × 1,249,172.44
  4. Step 4: Simplify right side
    1,297,689.82x = 2,220,785,259,528.69
  5. Step 5: Solve for x
    x = 2,220,785,259,528.69/1,297,689.82
  6. Step 6: Final answer
    x = 1,711,337.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.