Home / 680,455.70-1,021,072.35-260,033.30

Finding the Fourth Proportional to 680,455.70, 1,021,072.35 and 260,033.30

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Solution

The fourth proportional to 680,455.70, 1,021,072.35 and 260,033.30 is: 390,198.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,455.70 : 1,021,072.35 = 260,033.30 : x
  2. Step 2: Convert to fraction form
    680,455.70/1,021,072.35 = 260,033.30/x
  3. Step 3: Cross multiply
    680,455.70x = 1,021,072.35 × 260,033.30
  4. Step 4: Simplify right side
    680,455.70x = 265,512,812,709.26
  5. Step 5: Solve for x
    x = 265,512,812,709.26/680,455.70
  6. Step 6: Final answer
    x = 390,198.53

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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.