Home / 680,201.10-1,021,285.80-512,895.60

Finding the Fourth Proportional to 680,201.10, 1,021,285.80 and 512,895.60

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Solution

The fourth proportional to 680,201.10, 1,021,285.80 and 512,895.60 is: 770,085.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,201.10 : 1,021,285.80 = 512,895.60 : x
  2. Step 2: Convert to fraction form
    680,201.10/1,021,285.80 = 512,895.60/x
  3. Step 3: Cross multiply
    680,201.10x = 1,021,285.80 × 512,895.60
  4. Step 4: Simplify right side
    680,201.10x = 523,812,993,162.48
  5. Step 5: Solve for x
    x = 523,812,993,162.48/680,201.10
  6. Step 6: Final answer
    x = 770,085.48

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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.