Home / 1,927,147.80-2,889,555.30-861,991.32

Finding the Fourth Proportional to 1,927,147.80, 2,889,555.30 and 861,991.32

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Solution

The fourth proportional to 1,927,147.80, 2,889,555.30 and 861,991.32 is: 1,292,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927,147.80 : 2,889,555.30 = 861,991.32 : x
  2. Step 2: Convert to fraction form
    1,927,147.80/2,889,555.30 = 861,991.32/x
  3. Step 3: Cross multiply
    1,927,147.80x = 2,889,555.30 × 861,991.32
  4. Step 4: Simplify right side
    1,927,147.80x = 2,490,771,587,260.00
  5. Step 5: Solve for x
    x = 2,490,771,587,260.00/1,927,147.80
  6. Step 6: Final answer
    x = 1,292,465.26

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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.