Home / 1,261,322.64-1,740,662.64-688,399.92

Finding the Fourth Proportional to 1,261,322.64, 1,740,662.64 and 688,399.92

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Solution

The fourth proportional to 1,261,322.64, 1,740,662.64 and 688,399.92 is: 950,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,322.64 : 1,740,662.64 = 688,399.92 : x
  2. Step 2: Convert to fraction form
    1,261,322.64/1,740,662.64 = 688,399.92/x
  3. Step 3: Cross multiply
    1,261,322.64x = 1,740,662.64 × 688,399.92
  4. Step 4: Simplify right side
    1,261,322.64x = 1,198,272,022,122.99
  5. Step 5: Solve for x
    x = 1,198,272,022,122.99/1,261,322.64
  6. Step 6: Final answer
    x = 950,012.30

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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.