Home / 1,256,936.78-1,734,593.79-683,985.74

Finding the Fourth Proportional to 1,256,936.78, 1,734,593.79 and 683,985.74

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Solution

The fourth proportional to 1,256,936.78, 1,734,593.79 and 683,985.74 is: 943,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,936.78 : 1,734,593.79 = 683,985.74 : x
  2. Step 2: Convert to fraction form
    1,256,936.78/1,734,593.79 = 683,985.74/x
  3. Step 3: Cross multiply
    1,256,936.78x = 1,734,593.79 × 683,985.74
  4. Step 4: Simplify right side
    1,256,936.78x = 1,186,437,417,052.55
  5. Step 5: Solve for x
    x = 1,186,437,417,052.55/1,256,936.78
  6. Step 6: Final answer
    x = 943,911.77

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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.