Home / 1,180,468.84-1,629,043.62-643,921

Finding the Fourth Proportional to 1,180,468.84, 1,629,043.62 and 643,921

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Solution

The fourth proportional to 1,180,468.84, 1,629,043.62 and 643,921 is: 888,609.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,468.84 : 1,629,043.62 = 643,921 : x
  2. Step 2: Convert to fraction form
    1,180,468.84/1,629,043.62 = 643,921/x
  3. Step 3: Cross multiply
    1,180,468.84x = 1,629,043.62 × 643,921
  4. Step 4: Simplify right side
    1,180,468.84x = 1,048,975,396,834.02
  5. Step 5: Solve for x
    x = 1,048,975,396,834.02/1,180,468.84
  6. Step 6: Final answer
    x = 888,609.14

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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.