Home / 1,190,355.96-1,785,336.54-391,647.24

Finding the Fourth Proportional to 1,190,355.96, 1,785,336.54 and 391,647.24

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Solution

The fourth proportional to 1,190,355.96, 1,785,336.54 and 391,647.24 is: 587,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,355.96 : 1,785,336.54 = 391,647.24 : x
  2. Step 2: Convert to fraction form
    1,190,355.96/1,785,336.54 = 391,647.24/x
  3. Step 3: Cross multiply
    1,190,355.96x = 1,785,336.54 × 391,647.24
  4. Step 4: Simplify right side
    1,190,355.96x = 699,222,128,362.15
  5. Step 5: Solve for x
    x = 699,222,128,362.15/1,190,355.96
  6. Step 6: Final answer
    x = 587,405.91

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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.