Home / 814,390.20-1,222,022.70-341,123.40

Finding the Fourth Proportional to 814,390.20, 1,222,022.70 and 341,123.40

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Solution

The fourth proportional to 814,390.20, 1,222,022.70 and 341,123.40 is: 511,868.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,390.20 : 1,222,022.70 = 341,123.40 : x
  2. Step 2: Convert to fraction form
    814,390.20/1,222,022.70 = 341,123.40/x
  3. Step 3: Cross multiply
    814,390.20x = 1,222,022.70 × 341,123.40
  4. Step 4: Simplify right side
    814,390.20x = 416,860,538,301.18
  5. Step 5: Solve for x
    x = 416,860,538,301.18/814,390.20
  6. Step 6: Final answer
    x = 511,868.31

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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.