Home / 1,643,619.77-2,465,429.61-445,542.07

Finding the Fourth Proportional to 1,643,619.77, 2,465,429.61 and 445,542.07

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Solution

The fourth proportional to 1,643,619.77, 2,465,429.61 and 445,542.07 is: 668,313.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,619.77 : 2,465,429.61 = 445,542.07 : x
  2. Step 2: Convert to fraction form
    1,643,619.77/2,465,429.61 = 445,542.07/x
  3. Step 3: Cross multiply
    1,643,619.77x = 2,465,429.61 × 445,542.07
  4. Step 4: Simplify right side
    1,643,619.77x = 1,098,452,611,878.69
  5. Step 5: Solve for x
    x = 1,098,452,611,878.69/1,643,619.77
  6. Step 6: Final answer
    x = 668,313.09

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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.