Home / 814,207.70-1,221,311.55-739,412.30

Finding the Fourth Proportional to 814,207.70, 1,221,311.55 and 739,412.30

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Solution

The fourth proportional to 814,207.70, 1,221,311.55 and 739,412.30 is: 1,109,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,207.70 : 1,221,311.55 = 739,412.30 : x
  2. Step 2: Convert to fraction form
    814,207.70/1,221,311.55 = 739,412.30/x
  3. Step 3: Cross multiply
    814,207.70x = 1,221,311.55 × 739,412.30
  4. Step 4: Simplify right side
    814,207.70x = 903,052,782,202.07
  5. Step 5: Solve for x
    x = 903,052,782,202.07/814,207.70
  6. Step 6: Final answer
    x = 1,109,118.45

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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.