Home / 1,297,557.87-1,790,644.89-716,768.97

Finding the Fourth Proportional to 1,297,557.87, 1,790,644.89 and 716,768.97

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Solution

The fourth proportional to 1,297,557.87, 1,790,644.89 and 716,768.97 is: 989,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,557.87 : 1,790,644.89 = 716,768.97 : x
  2. Step 2: Convert to fraction form
    1,297,557.87/1,790,644.89 = 716,768.97/x
  3. Step 3: Cross multiply
    1,297,557.87x = 1,790,644.89 × 716,768.97
  4. Step 4: Simplify right side
    1,297,557.87x = 1,283,478,697,552.28
  5. Step 5: Solve for x
    x = 1,283,478,697,552.28/1,297,557.87
  6. Step 6: Final answer
    x = 989,149.48

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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.