Home / 450,608.06-621,839.73-280,842.19

Finding the Fourth Proportional to 450,608.06, 621,839.73 and 280,842.19

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Solution

The fourth proportional to 450,608.06, 621,839.73 and 280,842.19 is: 387,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,608.06 : 621,839.73 = 280,842.19 : x
  2. Step 2: Convert to fraction form
    450,608.06/621,839.73 = 280,842.19/x
  3. Step 3: Cross multiply
    450,608.06x = 621,839.73 × 280,842.19
  4. Step 4: Simplify right side
    450,608.06x = 174,638,831,100.77
  5. Step 5: Solve for x
    x = 174,638,831,100.77/450,608.06
  6. Step 6: Final answer
    x = 387,562.60

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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.