Home / 751,163.69-1,036,965.11-428,811.50

Finding the Fourth Proportional to 751,163.69, 1,036,965.11 and 428,811.50

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Solution

The fourth proportional to 751,163.69, 1,036,965.11 and 428,811.50 is: 591,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,163.69 : 1,036,965.11 = 428,811.50 : x
  2. Step 2: Convert to fraction form
    751,163.69/1,036,965.11 = 428,811.50/x
  3. Step 3: Cross multiply
    751,163.69x = 1,036,965.11 × 428,811.50
  4. Step 4: Simplify right side
    751,163.69x = 444,662,564,715.12
  5. Step 5: Solve for x
    x = 444,662,564,715.12/751,163.69
  6. Step 6: Final answer
    x = 591,964.93

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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.