Home / 826,142.62-1,239,273.16-345,887.14

Finding the Fourth Proportional to 826,142.62, 1,239,273.16 and 345,887.14

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Solution

The fourth proportional to 826,142.62, 1,239,273.16 and 345,887.14 is: 518,855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,142.62 : 1,239,273.16 = 345,887.14 : x
  2. Step 2: Convert to fraction form
    826,142.62/1,239,273.16 = 345,887.14/x
  3. Step 3: Cross multiply
    826,142.62x = 1,239,273.16 × 345,887.14
  4. Step 4: Simplify right side
    826,142.62x = 428,648,648,991.16
  5. Step 5: Solve for x
    x = 428,648,648,991.16/826,142.62
  6. Step 6: Final answer
    x = 518,855.51

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1.5x scale

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.