Home / 814,200.90-1,221,082.65-340,788.30

Finding the Fourth Proportional to 814,200.90, 1,221,082.65 and 340,788.30

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Solution

The fourth proportional to 814,200.90, 1,221,082.65 and 340,788.30 is: 511,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,200.90 : 1,221,082.65 = 340,788.30 : x
  2. Step 2: Convert to fraction form
    814,200.90/1,221,082.65 = 340,788.30/x
  3. Step 3: Cross multiply
    814,200.90x = 1,221,082.65 × 340,788.30
  4. Step 4: Simplify right side
    814,200.90x = 416,130,680,453.00
  5. Step 5: Solve for x
    x = 416,130,680,453.00/814,200.90
  6. Step 6: Final answer
    x = 511,090.91

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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.