Home / 1,231,410.53-1,699,330.36-687,555.56

Finding the Fourth Proportional to 1,231,410.53, 1,699,330.36 and 687,555.56

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Solution

The fourth proportional to 1,231,410.53, 1,699,330.36 and 687,555.56 is: 948,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,410.53 : 1,699,330.36 = 687,555.56 : x
  2. Step 2: Convert to fraction form
    1,231,410.53/1,699,330.36 = 687,555.56/x
  3. Step 3: Cross multiply
    1,231,410.53x = 1,699,330.36 × 687,555.56
  4. Step 4: Simplify right side
    1,231,410.53x = 1,168,384,037,294.80
  5. Step 5: Solve for x
    x = 1,168,384,037,294.80/1,231,410.53
  6. Step 6: Final answer
    x = 948,817.64

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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.