Home / 1,238,228.64-1,857,239.28-876,905.12

Finding the Fourth Proportional to 1,238,228.64, 1,857,239.28 and 876,905.12

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Solution

The fourth proportional to 1,238,228.64, 1,857,239.28 and 876,905.12 is: 1,315,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,228.64 : 1,857,239.28 = 876,905.12 : x
  2. Step 2: Convert to fraction form
    1,238,228.64/1,857,239.28 = 876,905.12/x
  3. Step 3: Cross multiply
    1,238,228.64x = 1,857,239.28 × 876,905.12
  4. Step 4: Simplify right side
    1,238,228.64x = 1,628,622,633,697.11
  5. Step 5: Solve for x
    x = 1,628,622,633,697.11/1,238,228.64
  6. Step 6: Final answer
    x = 1,315,284.25

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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.