Home / 1,391,713.49-2,084,026.39-916,959.53

Finding the Fourth Proportional to 1,391,713.49, 2,084,026.39 and 916,959.53

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Solution

The fourth proportional to 1,391,713.49, 2,084,026.39 and 916,959.53 is: 1,373,104.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,713.49 : 2,084,026.39 = 916,959.53 : x
  2. Step 2: Convert to fraction form
    1,391,713.49/2,084,026.39 = 916,959.53/x
  3. Step 3: Cross multiply
    1,391,713.49x = 2,084,026.39 × 916,959.53
  4. Step 4: Simplify right side
    1,391,713.49x = 1,910,967,861,999.66
  5. Step 5: Solve for x
    x = 1,910,967,861,999.66/1,391,713.49
  6. Step 6: Final answer
    x = 1,373,104.36

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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.