Home / 939,724.09-1,296,819.90-510,004.21

Finding the Fourth Proportional to 939,724.09, 1,296,819.90 and 510,004.21

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Solution

The fourth proportional to 939,724.09, 1,296,819.90 and 510,004.21 is: 703,806.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,724.09 : 1,296,819.90 = 510,004.21 : x
  2. Step 2: Convert to fraction form
    939,724.09/1,296,819.90 = 510,004.21/x
  3. Step 3: Cross multiply
    939,724.09x = 1,296,819.90 × 510,004.21
  4. Step 4: Simplify right side
    939,724.09x = 661,383,608,611.78
  5. Step 5: Solve for x
    x = 661,383,608,611.78/939,724.09
  6. Step 6: Final answer
    x = 703,806.17

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1.5x scale

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.