Home / 699,789.25-1,049,676.96-320,602.41

Finding the Fourth Proportional to 699,789.25, 1,049,676.96 and 320,602.41

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Solution

The fourth proportional to 699,789.25, 1,049,676.96 and 320,602.41 is: 480,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,789.25 : 1,049,676.96 = 320,602.41 : x
  2. Step 2: Convert to fraction form
    699,789.25/1,049,676.96 = 320,602.41/x
  3. Step 3: Cross multiply
    699,789.25x = 1,049,676.96 × 320,602.41
  4. Step 4: Simplify right side
    699,789.25x = 336,528,964,586.91
  5. Step 5: Solve for x
    x = 336,528,964,586.91/699,789.25
  6. Step 6: Final answer
    x = 480,900.45

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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.