Home / 1,188,367.92-1,640,157.30-705,199.50

Finding the Fourth Proportional to 1,188,367.92, 1,640,157.30 and 705,199.50

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Solution

The fourth proportional to 1,188,367.92, 1,640,157.30 and 705,199.50 is: 973,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,367.92 : 1,640,157.30 = 705,199.50 : x
  2. Step 2: Convert to fraction form
    1,188,367.92/1,640,157.30 = 705,199.50/x
  3. Step 3: Cross multiply
    1,188,367.92x = 1,640,157.30 × 705,199.50
  4. Step 4: Simplify right side
    1,188,367.92x = 1,156,638,107,881.35
  5. Step 5: Solve for x
    x = 1,156,638,107,881.35/1,188,367.92
  6. Step 6: Final answer
    x = 973,299.67

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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.