Home / 1,753,028.32-2,628,355.92-687,405.28

Finding the Fourth Proportional to 1,753,028.32, 2,628,355.92 and 687,405.28

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Solution

The fourth proportional to 1,753,028.32, 2,628,355.92 and 687,405.28 is: 1,030,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753,028.32 : 2,628,355.92 = 687,405.28 : x
  2. Step 2: Convert to fraction form
    1,753,028.32/2,628,355.92 = 687,405.28/x
  3. Step 3: Cross multiply
    1,753,028.32x = 2,628,355.92 × 687,405.28
  4. Step 4: Simplify right side
    1,753,028.32x = 1,806,745,737,127.26
  5. Step 5: Solve for x
    x = 1,806,745,737,127.26/1,753,028.32
  6. Step 6: Final answer
    x = 1,030,642.64

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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.