Home / 1,214,811.60-1,821,180.60-858,705.36

Finding the Fourth Proportional to 1,214,811.60, 1,821,180.60 and 858,705.36

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Solution

The fourth proportional to 1,214,811.60, 1,821,180.60 and 858,705.36 is: 1,287,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,811.60 : 1,821,180.60 = 858,705.36 : x
  2. Step 2: Convert to fraction form
    1,214,811.60/1,821,180.60 = 858,705.36/x
  3. Step 3: Cross multiply
    1,214,811.60x = 1,821,180.60 × 858,705.36
  4. Step 4: Simplify right side
    1,214,811.60x = 1,563,857,542,748.02
  5. Step 5: Solve for x
    x = 1,563,857,542,748.02/1,214,811.60
  6. Step 6: Final answer
    x = 1,287,325.16

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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.