Home / 1,180,128.45-1,769,758.61-421,764.94

Finding the Fourth Proportional to 1,180,128.45, 1,769,758.61 and 421,764.94

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Solution

The fourth proportional to 1,180,128.45, 1,769,758.61 and 421,764.94 is: 632,492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,128.45 : 1,769,758.61 = 421,764.94 : x
  2. Step 2: Convert to fraction form
    1,180,128.45/1,769,758.61 = 421,764.94/x
  3. Step 3: Cross multiply
    1,180,128.45x = 1,769,758.61 × 421,764.94
  4. Step 4: Simplify right side
    1,180,128.45x = 746,422,133,961.13
  5. Step 5: Solve for x
    x = 746,422,133,961.13/1,180,128.45
  6. Step 6: Final answer
    x = 632,492.28

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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.