Home / 1,226,446.34-1,691,047.60-839,448.59

Finding the Fourth Proportional to 1,226,446.34, 1,691,047.60 and 839,448.59

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Solution

The fourth proportional to 1,226,446.34, 1,691,047.60 and 839,448.59 is: 1,157,447.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,446.34 : 1,691,047.60 = 839,448.59 : x
  2. Step 2: Convert to fraction form
    1,226,446.34/1,691,047.60 = 839,448.59/x
  3. Step 3: Cross multiply
    1,226,446.34x = 1,691,047.60 × 839,448.59
  4. Step 4: Simplify right side
    1,226,446.34x = 1,419,547,512,889.02
  5. Step 5: Solve for x
    x = 1,419,547,512,889.02/1,226,446.34
  6. Step 6: Final answer
    x = 1,157,447.72

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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.