Home / 420,043.08-579,659.58-229,051.56

Finding the Fourth Proportional to 420,043.08, 579,659.58 and 229,051.56

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Solution

The fourth proportional to 420,043.08, 579,659.58 and 229,051.56 is: 316,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,043.08 : 579,659.58 = 229,051.56 : x
  2. Step 2: Convert to fraction form
    420,043.08/579,659.58 = 229,051.56/x
  3. Step 3: Cross multiply
    420,043.08x = 579,659.58 × 229,051.56
  4. Step 4: Simplify right side
    420,043.08x = 132,771,931,067.95
  5. Step 5: Solve for x
    x = 132,771,931,067.95/420,043.08
  6. Step 6: Final answer
    x = 316,091.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.