Home / 1,217,749.08-1,680,452.40-673,907.80

Finding the Fourth Proportional to 1,217,749.08, 1,680,452.40 and 673,907.80

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Solution

The fourth proportional to 1,217,749.08, 1,680,452.40 and 673,907.80 is: 929,969.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,749.08 : 1,680,452.40 = 673,907.80 : x
  2. Step 2: Convert to fraction form
    1,217,749.08/1,680,452.40 = 673,907.80/x
  3. Step 3: Cross multiply
    1,217,749.08x = 1,680,452.40 × 673,907.80
  4. Step 4: Simplify right side
    1,217,749.08x = 1,132,469,979,888.72
  5. Step 5: Solve for x
    x = 1,132,469,979,888.72/1,217,749.08
  6. Step 6: Final answer
    x = 929,969.89

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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.