Home / 1,238,200.32-1,707,957.99-819,090.96

Finding the Fourth Proportional to 1,238,200.32, 1,707,957.99 and 819,090.96

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Solution

The fourth proportional to 1,238,200.32, 1,707,957.99 and 819,090.96 is: 1,129,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,200.32 : 1,707,957.99 = 819,090.96 : x
  2. Step 2: Convert to fraction form
    1,238,200.32/1,707,957.99 = 819,090.96/x
  3. Step 3: Cross multiply
    1,238,200.32x = 1,707,957.99 × 819,090.96
  4. Step 4: Simplify right side
    1,238,200.32x = 1,398,972,949,668.77
  5. Step 5: Solve for x
    x = 1,398,972,949,668.77/1,238,200.32
  6. Step 6: Final answer
    x = 1,129,843.80

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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.