Home / 1,217,243.28-1,679,765.40-673,409.28

Finding the Fourth Proportional to 1,217,243.28, 1,679,765.40 and 673,409.28

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Solution

The fourth proportional to 1,217,243.28, 1,679,765.40 and 673,409.28 is: 929,288.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,243.28 : 1,679,765.40 = 673,409.28 : x
  2. Step 2: Convert to fraction form
    1,217,243.28/1,679,765.40 = 673,409.28/x
  3. Step 3: Cross multiply
    1,217,243.28x = 1,679,765.40 × 673,409.28
  4. Step 4: Simplify right side
    1,217,243.28x = 1,131,169,608,582.91
  5. Step 5: Solve for x
    x = 1,131,169,608,582.91/1,217,243.28
  6. Step 6: Final answer
    x = 929,288.03

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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.