Home / 1,078,975.80-1,617,167.70-447,564.60

Finding the Fourth Proportional to 1,078,975.80, 1,617,167.70 and 447,564.60

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Solution

The fourth proportional to 1,078,975.80, 1,617,167.70 and 447,564.60 is: 670,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,975.80 : 1,617,167.70 = 447,564.60 : x
  2. Step 2: Convert to fraction form
    1,078,975.80/1,617,167.70 = 447,564.60/x
  3. Step 3: Cross multiply
    1,078,975.80x = 1,617,167.70 × 447,564.60
  4. Step 4: Simplify right side
    1,078,975.80x = 723,787,014,783.42
  5. Step 5: Solve for x
    x = 723,787,014,783.42/1,078,975.80
  6. Step 6: Final answer
    x = 670,809.31

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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.