Home / 859,629.70-1,289,444.55-219,932.20

Finding the Fourth Proportional to 859,629.70, 1,289,444.55 and 219,932.20

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Solution

The fourth proportional to 859,629.70, 1,289,444.55 and 219,932.20 is: 329,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,629.70 : 1,289,444.55 = 219,932.20 : x
  2. Step 2: Convert to fraction form
    859,629.70/1,289,444.55 = 219,932.20/x
  3. Step 3: Cross multiply
    859,629.70x = 1,289,444.55 × 219,932.20
  4. Step 4: Simplify right side
    859,629.70x = 283,590,376,659.51
  5. Step 5: Solve for x
    x = 283,590,376,659.51/859,629.70
  6. Step 6: Final answer
    x = 329,898.30

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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.