Home / 1,297,911.57-1,791,154.11-717,172.29

Finding the Fourth Proportional to 1,297,911.57, 1,791,154.11 and 717,172.29

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Solution

The fourth proportional to 1,297,911.57, 1,791,154.11 and 717,172.29 is: 989,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,911.57 : 1,791,154.11 = 717,172.29 : x
  2. Step 2: Convert to fraction form
    1,297,911.57/1,791,154.11 = 717,172.29/x
  3. Step 3: Cross multiply
    1,297,911.57x = 1,791,154.11 × 717,172.29
  4. Step 4: Simplify right side
    1,297,911.57x = 1,284,566,086,412.25
  5. Step 5: Solve for x
    x = 1,284,566,086,412.25/1,297,911.57
  6. Step 6: Final answer
    x = 989,717.72

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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.