Home / 1,258,211.12-1,736,351.10-685,250.82

Finding the Fourth Proportional to 1,258,211.12, 1,736,351.10 and 685,250.82

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Solution

The fourth proportional to 1,258,211.12, 1,736,351.10 and 685,250.82 is: 945,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,211.12 : 1,736,351.10 = 685,250.82 : x
  2. Step 2: Convert to fraction form
    1,258,211.12/1,736,351.10 = 685,250.82/x
  3. Step 3: Cross multiply
    1,258,211.12x = 1,736,351.10 × 685,250.82
  4. Step 4: Simplify right side
    1,258,211.12x = 1,189,836,015,082.90
  5. Step 5: Solve for x
    x = 1,189,836,015,082.90/1,258,211.12
  6. Step 6: Final answer
    x = 945,656.89

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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.