Home / 814,646.20-1,222,406.70-341,379.40

Finding the Fourth Proportional to 814,646.20, 1,222,406.70 and 341,379.40

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Solution

The fourth proportional to 814,646.20, 1,222,406.70 and 341,379.40 is: 512,252.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,646.20 : 1,222,406.70 = 341,379.40 : x
  2. Step 2: Convert to fraction form
    814,646.20/1,222,406.70 = 341,379.40/x
  3. Step 3: Cross multiply
    814,646.20x = 1,222,406.70 × 341,379.40
  4. Step 4: Simplify right side
    814,646.20x = 417,304,465,801.98
  5. Step 5: Solve for x
    x = 417,304,465,801.98/814,646.20
  6. Step 6: Final answer
    x = 512,252.39

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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.