Home / 702,240.30-1,052,917.56-386,918.64

Finding the Fourth Proportional to 702,240.30, 1,052,917.56 and 386,918.64

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Solution

The fourth proportional to 702,240.30, 1,052,917.56 and 386,918.64 is: 580,133.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,240.30 : 1,052,917.56 = 386,918.64 : x
  2. Step 2: Convert to fraction form
    702,240.30/1,052,917.56 = 386,918.64/x
  3. Step 3: Cross multiply
    702,240.30x = 1,052,917.56 × 386,918.64
  4. Step 4: Simplify right side
    702,240.30x = 407,393,430,347.32
  5. Step 5: Solve for x
    x = 407,393,430,347.32/702,240.30
  6. Step 6: Final answer
    x = 580,133.94

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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.