Home / 676,759.77-1,015,700.42-339,896.85

Finding the Fourth Proportional to 676,759.77, 1,015,700.42 and 339,896.85

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Solution

The fourth proportional to 676,759.77, 1,015,700.42 and 339,896.85 is: 510,126.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,759.77 : 1,015,700.42 = 339,896.85 : x
  2. Step 2: Convert to fraction form
    676,759.77/1,015,700.42 = 339,896.85/x
  3. Step 3: Cross multiply
    676,759.77x = 1,015,700.42 × 339,896.85
  4. Step 4: Simplify right side
    676,759.77x = 345,233,373,301.68
  5. Step 5: Solve for x
    x = 345,233,373,301.68/676,759.77
  6. Step 6: Final answer
    x = 510,126.91

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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.