Home / 1,008,399.80-1,391,525.94-555,690.68

Finding the Fourth Proportional to 1,008,399.80, 1,391,525.94 and 555,690.68

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Solution

The fourth proportional to 1,008,399.80, 1,391,525.94 and 555,690.68 is: 766,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,399.80 : 1,391,525.94 = 555,690.68 : x
  2. Step 2: Convert to fraction form
    1,008,399.80/1,391,525.94 = 555,690.68/x
  3. Step 3: Cross multiply
    1,008,399.80x = 1,391,525.94 × 555,690.68
  4. Step 4: Simplify right side
    1,008,399.80x = 773,257,995,836.24
  5. Step 5: Solve for x
    x = 773,257,995,836.24/1,008,399.80
  6. Step 6: Final answer
    x = 766,816.89

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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.