Home / 751,164.69-1,036,966.49-428,812.50

Finding the Fourth Proportional to 751,164.69, 1,036,966.49 and 428,812.50

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Solution

The fourth proportional to 751,164.69, 1,036,966.49 and 428,812.50 is: 591,966.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,164.69 : 1,036,966.49 = 428,812.50 : x
  2. Step 2: Convert to fraction form
    751,164.69/1,036,966.49 = 428,812.50/x
  3. Step 3: Cross multiply
    751,164.69x = 1,036,966.49 × 428,812.50
  4. Step 4: Simplify right side
    751,164.69x = 444,664,192,993.13
  5. Step 5: Solve for x
    x = 444,664,192,993.13/751,164.69
  6. Step 6: Final answer
    x = 591,966.31

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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.