Home / 751,763.31-1,128,607.24-645,825.03

Finding the Fourth Proportional to 751,763.31, 1,128,607.24 and 645,825.03

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Solution

The fourth proportional to 751,763.31, 1,128,607.24 and 645,825.03 is: 969,564.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,763.31 : 1,128,607.24 = 645,825.03 : x
  2. Step 2: Convert to fraction form
    751,763.31/1,128,607.24 = 645,825.03/x
  3. Step 3: Cross multiply
    751,763.31x = 1,128,607.24 × 645,825.03
  4. Step 4: Simplify right side
    751,763.31x = 728,882,804,631.22
  5. Step 5: Solve for x
    x = 728,882,804,631.22/751,763.31
  6. Step 6: Final answer
    x = 969,564.22

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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.