Home / 403,623.24-605,529.78-123,140.52

Finding the Fourth Proportional to 403,623.24, 605,529.78 and 123,140.52

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Solution

The fourth proportional to 403,623.24, 605,529.78 and 123,140.52 is: 184,739.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,623.24 : 605,529.78 = 123,140.52 : x
  2. Step 2: Convert to fraction form
    403,623.24/605,529.78 = 123,140.52/x
  3. Step 3: Cross multiply
    403,623.24x = 605,529.78 × 123,140.52
  4. Step 4: Simplify right side
    403,623.24x = 74,565,251,984.69
  5. Step 5: Solve for x
    x = 74,565,251,984.69/403,623.24
  6. Step 6: Final answer
    x = 184,739.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.