Home / 814,126.40-1,221,189.60-723,924.80

Finding the Fourth Proportional to 814,126.40, 1,221,189.60 and 723,924.80

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Solution

The fourth proportional to 814,126.40, 1,221,189.60 and 723,924.80 is: 1,085,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,126.40 : 1,221,189.60 = 723,924.80 : x
  2. Step 2: Convert to fraction form
    814,126.40/1,221,189.60 = 723,924.80/x
  3. Step 3: Cross multiply
    814,126.40x = 1,221,189.60 × 723,924.80
  4. Step 4: Simplify right side
    814,126.40x = 884,049,436,942.08
  5. Step 5: Solve for x
    x = 884,049,436,942.08/814,126.40
  6. Step 6: Final answer
    x = 1,085,887.20

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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.