Home / 1,176,972.80-1,764,230.40-643,673.60

Finding the Fourth Proportional to 1,176,972.80, 1,764,230.40 and 643,673.60

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Solution

The fourth proportional to 1,176,972.80, 1,764,230.40 and 643,673.60 is: 964,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,972.80 : 1,764,230.40 = 643,673.60 : x
  2. Step 2: Convert to fraction form
    1,176,972.80/1,764,230.40 = 643,673.60/x
  3. Step 3: Cross multiply
    1,176,972.80x = 1,764,230.40 × 643,673.60
  4. Step 4: Simplify right side
    1,176,972.80x = 1,135,588,532,797.44
  5. Step 5: Solve for x
    x = 1,135,588,532,797.44/1,176,972.80
  6. Step 6: Final answer
    x = 964,838.38

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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.