Home / 979,239.00-1,351,003.39-639,904.08

Finding the Fourth Proportional to 979,239.00, 1,351,003.39 and 639,904.08

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Solution

The fourth proportional to 979,239.00, 1,351,003.39 and 639,904.08 is: 882,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,239.00 : 1,351,003.39 = 639,904.08 : x
  2. Step 2: Convert to fraction form
    979,239.00/1,351,003.39 = 639,904.08/x
  3. Step 3: Cross multiply
    979,239.00x = 1,351,003.39 × 639,904.08
  4. Step 4: Simplify right side
    979,239.00x = 864,512,584,821.33
  5. Step 5: Solve for x
    x = 864,512,584,821.33/979,239.00
  6. Step 6: Final answer
    x = 882,841.25

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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.