Home / 814,409.10-1,221,759.45-341,142.30

Finding the Fourth Proportional to 814,409.10, 1,221,759.45 and 341,142.30

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Solution

The fourth proportional to 814,409.10, 1,221,759.45 and 341,142.30 is: 511,774.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,409.10 : 1,221,759.45 = 341,142.30 : x
  2. Step 2: Convert to fraction form
    814,409.10/1,221,759.45 = 341,142.30/x
  3. Step 3: Cross multiply
    814,409.10x = 1,221,759.45 × 341,142.30
  4. Step 4: Simplify right side
    814,409.10x = 416,793,828,819.74
  5. Step 5: Solve for x
    x = 416,793,828,819.74/814,409.10
  6. Step 6: Final answer
    x = 511,774.52

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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.