Home / 1,761,313.60-2,431,356.96-1,189,128.88

Finding the Fourth Proportional to 1,761,313.60, 2,431,356.96 and 1,189,128.88

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Solution

The fourth proportional to 1,761,313.60, 2,431,356.96 and 1,189,128.88 is: 1,641,500.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,313.60 : 2,431,356.96 = 1,189,128.88 : x
  2. Step 2: Convert to fraction form
    1,761,313.60/2,431,356.96 = 1,189,128.88/x
  3. Step 3: Cross multiply
    1,761,313.60x = 2,431,356.96 × 1,189,128.88
  4. Step 4: Simplify right side
    1,761,313.60x = 2,891,196,778,725.00
  5. Step 5: Solve for x
    x = 2,891,196,778,725.00/1,761,313.60
  6. Step 6: Final answer
    x = 1,641,500.29

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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.