Home / 1,214,815.60-1,821,186.60-858,709.36

Finding the Fourth Proportional to 1,214,815.60, 1,821,186.60 and 858,709.36

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Solution

The fourth proportional to 1,214,815.60, 1,821,186.60 and 858,709.36 is: 1,287,331.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,815.60 : 1,821,186.60 = 858,709.36 : x
  2. Step 2: Convert to fraction form
    1,214,815.60/1,821,186.60 = 858,709.36/x
  3. Step 3: Cross multiply
    1,214,815.60x = 1,821,186.60 × 858,709.36
  4. Step 4: Simplify right side
    1,214,815.60x = 1,563,869,979,726.58
  5. Step 5: Solve for x
    x = 1,563,869,979,726.58/1,214,815.60
  6. Step 6: Final answer
    x = 1,287,331.16

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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.