Home / 814,897.80-1,222,346.70-215,951.40

Finding the Fourth Proportional to 814,897.80, 1,222,346.70 and 215,951.40

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Solution

The fourth proportional to 814,897.80, 1,222,346.70 and 215,951.40 is: 323,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,897.80 : 1,222,346.70 = 215,951.40 : x
  2. Step 2: Convert to fraction form
    814,897.80/1,222,346.70 = 215,951.40/x
  3. Step 3: Cross multiply
    814,897.80x = 1,222,346.70 × 215,951.40
  4. Step 4: Simplify right side
    814,897.80x = 263,967,481,150.38
  5. Step 5: Solve for x
    x = 263,967,481,150.38/814,897.80
  6. Step 6: Final answer
    x = 323,927.10

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1.5x scale

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.