Home / 1,168,016.20-1,611,750.22-709,381.72

Finding the Fourth Proportional to 1,168,016.20, 1,611,750.22 and 709,381.72

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Solution

The fourth proportional to 1,168,016.20, 1,611,750.22 and 709,381.72 is: 978,878.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,016.20 : 1,611,750.22 = 709,381.72 : x
  2. Step 2: Convert to fraction form
    1,168,016.20/1,611,750.22 = 709,381.72/x
  3. Step 3: Cross multiply
    1,168,016.20x = 1,611,750.22 × 709,381.72
  4. Step 4: Simplify right side
    1,168,016.20x = 1,143,346,143,273.98
  5. Step 5: Solve for x
    x = 1,143,346,143,273.98/1,168,016.20
  6. Step 6: Final answer
    x = 978,878.67

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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.