Home / 1,665,988.36-2,498,982.54-403,816

Finding the Fourth Proportional to 1,665,988.36, 2,498,982.54 and 403,816

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Solution

The fourth proportional to 1,665,988.36, 2,498,982.54 and 403,816 is: 605,724

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665,988.36 : 2,498,982.54 = 403,816 : x
  2. Step 2: Convert to fraction form
    1,665,988.36/2,498,982.54 = 403,816/x
  3. Step 3: Cross multiply
    1,665,988.36x = 2,498,982.54 × 403,816
  4. Step 4: Simplify right side
    1,665,988.36x = 1,009,129,133,372.64
  5. Step 5: Solve for x
    x = 1,009,129,133,372.64/1,665,988.36
  6. Step 6: Final answer
    x = 605,724

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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.